June 2024 Earth Science Exam Review Summary

[Music] [Applause] [Music]

[Applause] hello everyone they finally released the June 2024 region so I'm going to do it

like always you can follow along with me you can do it first yourself whatever you feel like so here we go June

2024 let's see how it goes all right we're starting with the multiple choice part one the diagrams below represent

the atmosphere and inferred interior Str structure of the planet Uranus everyone's favorite planet so the

interior structure anything to do with interior structure is going to be something to do with density because it

makes these layers but let's see what they have to say which two factors cause the layered structure okay so we

definitely want density right so there's density here so uh anywhere else density here yeah okay so one of those what's

going to make these the certain layers get to the middle is it's going to be gravity is going to pull everything in

so gravity and density differences is going to be your best answer here period of rotation doesn't have anything to do

with um the interior structure okay number two which process occurring in the sun all right I

automatically know it's nuclear fusion because that's the only process in the sun that's in the curriculum so it's

four number three compare to the sizes of the planets and revolution of the terrestrial planets size imp period of

revolution uh the Jovian planets have what all right right so this one if you don't have it memorized you can go into

your reference table and you could go to page 15 right here and you could compare so

smaller size is shorter period of revolution smaller size is longer period of revolution larger size longer period

of revolution and so on and so forth so as you can see these Big Planets here have the longer period of

revolution these are in years so just be careful like don't think 687 days is longer than 11.9 years so it's going to

be larger sizes and longer period of revolution all right number four the photograph below shows a dust covered

icy object that is a highly elliptical orbit in our solar system so something that's very

elliptical means that if this is the sun it's going to be going like very elliptical like very oval essentially

that's probably going to be a comet and especially that's icy so number one looks good meteors don't

have highly tical orbit it's not a moon it's not a planet so that's a comet number five at which location will the

sun appear to pass directly overhead okay the sun only ever goes directly overhead between

23.5° North tropical cancer and 23.5° South the trop of Capricorn that's the only areas there and in between that

it could be so we need to find which one of those places is going to be in that zone so for this go to your reference

table we're going to go to page four or five doesn't matter which one four is probably better cuz it's labeled so it

looks like Northern Australia is in that zone here's 23.5 South and 23.5 North so it's got to be in the middle of that so

it's going to be Northern Australia and you could check all the other ones I just you know I know it's

the answer uh the Water layer of the Earth occur covers approximately what so you just have to memorize this it's 70%

of the Earth's like here not inside the Earth or not in the atmosphere so the

atmosphere is wrong this is the sky the water is not in the sky it's on the lithosphere which is the crust

layer all right number seven that is a giant hole okay what is this that's a crater definitely a crater and that was

formed by some like a big meteor or something that smashed into the Earth so it's an impact event

three all right we have the Central Star Polaris this a time lapse these are star trails and remember these are going to

move at 15° per hour because it's based upon how the Earth rotates so Polaris does not appear to move because it's

what so Polaris if you look at the Earth it's it's tilted on its axis Polaris is like here it's directly above the

Earth's north pole so it's above the Earth's axis rotation three number nine which location is the

time to okay it says solar noon is occurring at location X so in this case they want

us to assume that this is 12 p.m. so East increase and it's 15° per hour so these are going up by 15 it's 30 here's

4 45 60 75 90 so 12 1 2 letter D East you go increase West is less that's how I remember East

increased West is less number 10 how many degrees per day does the earth move in its orbit around

the sun well it takes 365 days to go 360° in a circle so it's

about 1° per day all right constellations anything to do with constellations is the Earth's

revolution we see different constellations throughout each season so that's because we revolve around the Sun

the Earth revolves around the sun too all right we got a dupoint chart question what is the relative humidity

so I want to know what's the relative humidity when the air temperature which is the dry

bulb air temperature is the dry bulb and the wet bulb temperature is 11 so the first thing we're going to do is

subtract these cuz that's the difference so 20 - 11 is 9 that's the difference so now we're just going to go

to air temperature 20 difference of nine on the relative humidity chart relative humidity air temperature

20 difference of nine right here and we're going to count 0 1 2 3 4 5 6 7 8 9 30 30% is that a choice

yep all right number 13 Earth's early atmosphere consisted of CO2 water vapor hydrogen and nitrogen during this time

the first crust formed and made made of ous rock based on this information how did the Earth's early atmosphere form uh

this is just a memorized question so volcanic eruptions erupted early on and spewed

out all the gases that currently make up the atmosphere so that's going to be one number 14 it's giving us latitude

and longitude and it wants to know where the subtropical jet streams are this is on the reference table so we're going to

go to the reference table here look jet stream subtropical jet streams right there there they are

so one is at 30 North and one is at 30 South and it also so so it's going to be either one or two it's not the 60s and

it's saying lower or upper troposphere so we have to look at that the tropo pause is here and the jet streams are at

the top so it's lower Stratosphere upper troposphere so it's going to be upper

troposphere 15 the transfer of heat energy in the oceans due to density differences so we got three methods of

heat transfer remember conduction through solids convections through liquids and it has to do with density

radiations through empty space and insulation means amount of sunlight so it's going to be

two which list of Earth's materials indicates an increasing order in the amount of energy needed to raise the

temperature of them by one so this is specific heat that's the definition of specific

heat so now it's saying an increasing order in the amount of energy so we want the the lowest specific heat first and

it's got to go to the highest specific heat okay so we want these ranked from low to high and we're going to go to

page one and the reason we're doing it low to high is because in increasing order so

that means it's going to go higher and higher and higher as you go so low lowest out of copper Basalt

iron or lead uh lead's at the bottom so that's that's first then we got Basalt and

granite ises that go in order Basalt and then Granite no so that's

wrong iron then copper then lead no lead's at the bottom so that's I know that's wrong Basalt iron and

granite Basalt nope that goes out of order what's the copper iron balt copper iron balt that's the answer

okay which color and texture of surfaces with equal areas have the least temperature increase so we don't want

them to absorb no absorb so that's going to be light color

and smooth that's the best reflector if it said the most you would have picked dark and

rough over the last 200 years global warming is inferred to be primarily caused by what um it's an increase in

burning fossil fuels like uh CO2 releasing in the air methane's another greenhouse gas water vapor is another

greenhouse gas so it's going to be an increase in three three greenhouse gases all right we got 19 all right

there's an air temperature line and a dupoint line so what I know automatically is when the air

temperature is hitting the dupoint right there that's 100% relative humidity that means the W the air is

fully saturated with water so what is the day in time when precipitation will most like occur it's at that point right

there where they hit so it's going to be Monday at like 700 p.m. is or 8:00 p.m. so there we go

two the United States below shows a portion of the gretan mountain mid July okay so it's showing there's snow on the

top of the mountain and they want to know why it's because mountains are tall elevation

one all right Which percentage of the radioactive potassium 40 in a sample will have decayed in that many years

okay I'm putting a star next to this question because this is tricky it's mean so normally for radioactive decay

we just have to figure out how much decayed uh how much burned away is how much is left sorry how much is left they

reverse it on this one so 2.6 * 10 9th all right so let me show you what's going on here potassium 40 that takes

1.3 * 10 9 to cut it and a half once so I'll do the work down here I do a fat chart for this if you don't know the fat

chart you could watch my video on radioactive decay so at No Half Lives no time went by and there's 100% of the

material left one half life there's 50% left and 1.3 * 10 to the 9th years is went by we need to get to 2.6 * 10 to

the 9 so two half lives would be 2.6 * 10 9th which means 25% of potassium 40 will be left they didn't ask that they

asked how much decayed how much broke down into the other substance so it's going to be whatever is left over so if

there's 25% of pottassium 40 left that means 75%

decayed so that was mean a lot of you a lot of people picked one on that one cuz they didn't see that it's

decayed 22 based on the geologic history of the earth which group of organisms existed for the shortest amount of time

okay let's see well first let's think uh it's probably humans cuz we

barely been here but we can go look um geologic time scale so birds look birds have been

around for this many years dinosaurs here grass I

mean grass is right here and then humans barely so it's humans oxygen first became part of the

Earth's atmosphere from what okay this is on here right here Oceanic oxygen produced by cyano bacteria so we're

going to pick something like that life process of cyanobacteria too another reference table question uh the letter X

on the map shows the location of the present State of Florida okay the position that is now Florida to have

been positioned on the equator approximately how long ago so we need to get that X on the equator again another

reference table question so check this out look here it is so this is the Florida oh no not that

that one that's Florida so we need to that to be on the equator which is right here so that's right here 232 million

years ago three so far as a lot of reference table

on this the division of geologic time into errors periods and epochs is based on what so which one of these is most

likely going to cause those to be changed so it's nothing to do with magnetic fields mountain building events

sometimes of occurrence of widespread volcanic eruption sometimes but it's mostly about the life forms that's going

to be your best answer all right we got an earthquake question the first P wve from an earthquake was recorded at 1020

at a seism station located 2,200 km from the earthquake epicenter at what time did the swaave arrive okay so we need to

find the difference so that's going to be our main thing so 2,200 we're going to go to

that okay 2,200 right there and we're going to say okay the PVE took about 4 minutes and 20

seconds and the swave took about eight minutes so that means there's a 4 minute and a 3 minute

and 40 second Gap so it's 3 minutes and 40 seconds in between those

two so if it's 10 20 and then you have another 3 minutes

and about 40 seconds go by that's going to be about 10 23 and 40 seconds approximately I'm just doing this on a

screen so this is going to be the closest answer it might have been 340 EXA uh 330

exactly but I can't estimate it that good on my screen here which two hotspot boundaries are located at plate oh which

two hotspots are located at plate boundaries oh my gosh so many reference table questions going here go to our

hotspot so you're going to look at these and you're going to see which ones land on the line the plate boundary lines so

I see bouvet Iceland Easter

Island pretty much it right so let's see if that's one Iceland Easter Island bouvet there we go

four 28 we got a Meandering stream so remember erosion erosion on the outside

deposition on the inside so erosion is when it's really fast and deposition is when it's slow so

deposition at C instruments that record record seismic waves on Mars allows scientists to infer

what okay seismic wave that's earthquakes so something to do with earthquakes or something to do with like

plate tectonics so earthquakes seismic waves help us infer the interior of the earth

so this is going to help them um do the internal structure of mors the block diagram represents a landscape with two

valleys okay the two Valley are the two valleys most likely formed because the shell and the Limestone Bedrock did

what okay so it's pretty much saying wow this question is kind of tough so so the shell and the Limestone

here are lower right than these mountains here so they're going to be less

resistant to weathering than whatever this stuff was this stuff's going to stick up and make the valley

walls so they're less resistance to weathering than this dot which is sandstone and conglomerate

and they're this ignest rock is also making mountains over here so shell and Limestone are weaker than those

three which is one so far that right there was the hardest

question I think so far so I'll put a star next set actually that radioactive decay question was it was not hard it

was just like word trickery but this one was actually kind of hard 31 the photograph below shows rocks

found in England okay they're all round and smooth so that's going to be abrasion so water essentially when you

have something in water and it's square and it rolls it chips away the edges and rounds it

out photograph shows a volcanic mountain and they want to know the stream drainage pattern so if imagine this it's

raining on the top of this mountain some rain goes down this side this side this side the back side so you get something

like this I can't draw 3D by the way got to use your imagination on that one all

right we got a landscape feature o this is a Delta I just know that automatically because this looks like a

river and this looks like the Ocean and here's your like tree branch sort of looking structure so that's a delta

formed by stream deposition it's dropping off everything in the ocean what's the name and texture of a

sedimentary rock composed of carbon another reference table question we're going to go to the sedimentary

rock chart and try to find carbon okay right here carbon binus coal that's the

answer by two minutes coal oh then we need the texture what type of texture go left bioclastic see

texture so four all right we got the cross-section below represents an ous intrusion into

sedimentary Bedrock layers A B and C identify different rocks within the Shaded zone of contact

metamorphism which ones would most likely be found okay so they just want to see what

would this turn into this turn into and this turn into if it was metamorphosized by an ous

intrusion so we have to find what these three symbols are those are the symbols here so you could see like this one here

with the circly things that's conglomerate conglomerate this is

sandstone and this is limestone so the way you would see this is you would go to the the metamorphic rock chart and

you would read what turns into what like look lowgrade metamorphism of shell we don't need shell but we do need

Sandstone so we got quartzite look this Limestone turns into marble and then meta conglomerate is what turns into

from conglomerate so this is is going to be um Sandstone is quartzite then we got marble and metac

conglomerate so marble quartzite meta conglomerate two all right let's see what's going on

here they're saying the Milky Way is going to collide with Andromeda 4 billion years that's going to be a fun

day the gravitational force pulling the G galaxies together is influenced by what so it's going to be two things

the bigger the thing the more gravity it has and the closer they are the more gravity they have so it's going to be

the mass and the distance 37 the Andromeda galaxy has a shape that's similar to the Milky Way what's the

shape so it's going to be a spiral the spiral is the most common galaxy in the universe and it's a there's billions of

galaxies in the universe so that's going to be four all right we got the water cycle

beautiful so we could just label these up evaporation

transpiration this is runoff infiltration precipitation and then

condensations in the cloud okay which process is a transporation which process and heat

energy exchange are represented by b b is evaporation so one and two are out and

then to get this number we're just going to go on the reference table and look look vaporization means evaporation

2260 great which conditions would cause runoff to decrease so how do you get runoffs like flooding essentially and

you want it to be less so if there's going to be less flooding less rain definitely so get rid

of those and then a decreased slope because an increas slope would make it flood down the hill so if you decrease

the slope make it flatter it's not going to be running off so it's GNA be one all right couple things

here this is elevation shown in feet here's our steep area this is going to be what direction

the river is Flowing because the lines Bend upstream and I mean that's pretty much

it a th000 is up here so this is uphill and then there's a gradient in here so we'll see what they can ask

which profile represents the shape of the land between A and B okay it's just going to be going down

a hill it's Steep Hill so it's going to be three

whoops okay it wants us to solve gradient in feet per mile from C to D I'll do my best with the computer here C

to D okay so first we got to get our change in value so C is 1,000 and then D is on The Bold line which is

500 so it's 500 divided by the distance between C and D which on this one you're going to

have to do you have to extend the scale let's see yeah so it's going to

be um probably like three I can't measure this on my screen which is very annoying

um let's see if that works so if you if you just do 500 divided by 3 miles let's see what I get that's just me eyeballing

it which I don't like to do 166.000 is that an answer

yeah okay moral the story there is I got lucky eyeballing it I would not eyeball it you're going

to measure that uh um this scale here on a scrap paper and then put it up to the line and keep adding distance to the

scale until you get the right line but it was three miles okay letter X is located on which

landscape feature let's see okay this question is terrible okay a sandbar is a literally a

mound of sand in the water a sand dun in a desert so we're talking about a river here so that's out an escarment is like

a a like a cliff like a a cliff near an ocean side and then a flood plane is like an area next to a

river so that is going to be an area next to a river that that essentially when it rains a lot when the water

overflows it floods this area in this area so it's going to be four okay the arrows on which map best

represent the direction of Stream flow relative to the pawn so we already did this the stream's going to flow this

way so relative to the pond it's going like this northeast see if that's an answer yeah

it's going to be three okay we got subduction

so there's three choices a b and c compared to the density and thickness of Continental cross the oceanic crust is

what so there's a hint for this on the reference table if you go to page 10 right here Granite is continental and

basaltic is oceanic and then it shows their relative densities so the continental crust is less dense than the

oceanic crust so the oceanic crust is more dense and then the thinner and thicker part

you have to remember so ocean AC crust is thinner three Which diagram represents the

Motions of plate boundary B which is going to be here this is going to be Oceanic

Oceanic so they're going to crash into each other this one's subducting under this one

so this one three which surface feature is created at plate boundary C so this is

Continental Continental which means a mountain is going to form because it's going to go up so it's going to be

four all right let's see so poosi Stones okay poosi stones are famous Rock

specimens found on all beaches of Lake Michigan but especially on beaches near the city of Michigan the spones are well

eroded pieces of coral reefs that were alive between this age that might be important coral reefs that might be

important at the time the coral animals were living and forming the reefs the area was underwater and the coral along

with many reef animals thrived eventually the ocean disappeared and the fossil reefs were uncovered advancing

and retreating glaciers that's interesting broke off pieces of the reefs smooth their edges and distributed

them throughout the area Lake Michigan formed at the end of the ice AG okay today Lake waves continue distributes an

endless supply of these stones with fossils okay the coral that eventually became

poosi fos Stones were alive during which geologic time period okay right there 375 to 400 million years ago we need a

time period for that so we're going to go to our time scale and go to that spot right here 375 to 400 which is right

here it's the devonian with which neor state index fossil is in the same group of organisms

as the stone Coral so it's going to be Coral which one of those is coral wow so many reference table

questions so we're going to go here corals right there so V U or t this one V U or t like caneria cilum

or plural dictum there it is the stone has shown in the photograph

is classified as what so it looks like so we're going to need a size that's going to make these right so from here

and they give a ruler it's about 6 cm and we're going to go to our another reference table right here 6 cm particle

diameter is going to be 1 2 3 4 5 6 cuz here's 6.4 so it's a pebble

okay oh yay we graduated we're on short answer questions okay let's press on from uh 51 to 54 on the weather map in

the answer booklet we got our answer booklet right here there's our weather map I guess on the map draw the 1,000

mbar and 1,4 milar ISO bars ex extend them to the edge of the map okay here we go ready

1,000 edge of the map 1,000 1,000 1 ,000 and then 1004 is going to

be between 13 and 1006 to grab this one below the 1005 to get that one between 106 and 10002

that's your answer convert the air pressure of the lowest value ISO bar shown on the map

from millibars to inches of mercury okay let's see lowest value here is going to be

984 so we're going to conver convert 984 to inches of mercury and again another reference table question let's

go to the conversion right here 984 is right here so inches of mercury is going to be

here's 29. 29.5 is probably close

enough so we're going to put 29.5 okay 53 identify the weather instrument for air pressure so that's just like

literally rote knowledge that's a barometer you just have to remember a barometer measures air

pressure 54 write the two-letter symbol of an air mass where this is in the hurricane form

where the hurricane formed look Florida so hurricane forming around Florida that's going to be maritime tropical

Maritime means it's near water tropical is warm so Mt is your best one for that one 55 they want something in degrees

celsius let's see using Garnet as a geothermometer okay geothermometer mineral is a mineral

with slight differences in composition that can be used to estimate the temperature at which some types of met

rock form garnets a geothermometer mineral because there's several types of garnet that contain different amounts of

iron and magnesium the garnet coefficient indicates the ratio of iron to magnesium found in the garnet when

the garnet coefficient's High there is a greater percentage of iron compared to magnesium the garnet coefficient is an

indicator of the temperature at which the rock formed okay fine determine the rock formation temperature of a rock

sample with a Garner coefficient of 1.55 okay so we're just going to find that that be in here it's between 1.47 and

1.63 so the answer is between 640 and 590 so I'm just going to pick 600 so that was easy that's just reading

the chart there's nothing you don't have to know anything about what a garding coefficient is it's just like a

reading so determine uh describe the rock formation temperatures that are indicated when the higher Garnet

coefficients is found describe the rock formation temperature so it's going to be here's

your temperature higher coefficient lower temperature see lower one is higher so

it's going to be the temperatures dropping uh 57 identify one foliated metamorphic

rock for which the garnet coefficient might be used to determine which temperature the rock form okay so we

need A foliated metamorphic rock with Garnet right so we're going to go to our rock chart

and we're going to find metamorphic rock and we need it to have Garnet so here's Garnet so we could pick fight shist or

nice I will write shist because it's it's a good rock okay going on to

58 all right we got a map of Australia and we're showing the locations of of three cities Brisbane Melbourne and waga

waga the graph shows the average monthly temperature in waga waga and Melbourne in degrees CSI

okay where oh there we go compared to the average monthly temperature curve of

Melbourne describe how the curve is different for a city in New York okay so we are not in the southern

hemisphere so we in the northern hemisphere so what that's going to mean is our we get our highest temperatures

in June and July in our summer and our lowest in January and December so it's going to be like a New York one would be

like this right so it' be completely reversed so that's going to be my point that I'm

going to write so I'm going to say it would be the hotter

temps in July and that's all I'm going to say that's that's all you have to be able to

do you could just say the opposite to it would be colder temperatures in January that's fine um all right Circle one

warmer cool current and name the ocean current let's see Circle the warmer cool to indicate the temperature of the ocean

current that flows off the co coast of Brisbane so we're going to look at Brisbane so that's the East Coast of

Australia so we're going to go to our reference table we're going to go to page four our ocean currents find

Australia look it's the East Australian current and that's a solid Arrow which means it's

warm so warm east Australian current all right base your answers to

questions 60 through 62 on the cross-sections below and your knowledge of earth science the cross-section below

represent the change in the land of monok lighthouse between 1838 and 1988 so right there you can get your

calculator and subtract that out and that is over 150 years so that might come in

handy later and it's built on on Consolidated sediments located on the Eastern tip of

Long Island and there's an edge uh the distance from the lighthouse to the edge of the escarment is located in the

cross-section escarment is like the cliff side edge so identify one agent of erosion that removed the sediment and

change position of the escarment so I would say wave the waves from the ocean is going to be the most substantial

difference so we could say wave action okay calculate the rate of erosion in feet per year from 1838 to 1988 all

right so we know that's going to be 150 years and we went from 220 to 100 so you're going to set it up 220 minus

100 ft divid 150 years so you just plug that in your

calculator so 220 - 150 nope 220 minus 100 divided by 150 so you're going to get

0.8 Beed per year for that one and then

62 describe one action that be can be taken to slow or prevent the erosion of the land between the escarment in the

ocean so if you if you wouldn't want this to be eroded back I would build like some sort of wall in the ocean that

would kind of like eat the waves essentially stop the waves so I would say build some type of wall you could

say like build a jetty that sounds good oh boy my favorite thing ever do we

have to graph something oh my gosh all right what do we graphing here so June 22nd in Rochester that's close

to the summer soul let's say on the graph construct a line graph by apping the altitude of the Sun

for each time of day shown on the data table okay the altitude of the Sun for each time of

day so we're doing this one so 9:00 a.m. 35 9:00 a.m. 32 34

35 and you're going to be more accurate than me remember I am on a screen and it's really

hard to do this but I will try my best 10 is 46 11 is

56 I'm just going to make a little Dot and I'll go at the end 12 is 65 okay one is

70 2 is 68 3 is 60 4 is

50 5 was 40 and six is 29 okay I can make all these big

and it wants us to connect them I'm going to do my best good enough for

me okay great based on the data describe the relationship between altitude of the Sun and length of the Shadow so altitude

of the sun is low length of Shadows high altitude of the sun is low length of Shadows high altitude of the sun is

higher length of Shadow low so it's inverse as altitude the sun increases Shadow length

decreases so you can write indirect inverse some people write like negative relationship

so you could write it all out too you could say as altitude increases Shadow line decreases

okay 65 determine the shadow length at 430 okay 430 is between four and 5 so Shadow

length is between 4.1 and six so I just write five

right is there an actual pattern here oh I'm I'm not doing this right guys we have to base it off of the graph

they gave you it look I probably just got lucky 430 is here it's literally right there so it's five I got

lucky so I did I was estimating off this table I didn't know that they plotted it in the booklet but I got

lucky okay 66 okay um there is an unconformity Rock layers A Fault index

fossils let's see identify the geologic time period which unconformity WX was forming

so it's forming between this bird and this Coral so we need to find the bird and the

coral on the time scale K and V between K and

V K and V so it formed in this one so that's the third box above the Bold line

for me Solan yep that's how how you do it

technically it could also be devonian and orian because it's still in between that area but Solan is just the most

obvious to me I'm going to write that okay okay in your answer booklet Circle the term that best describes the

age of fault YZ compared to layers G and H so YZ cut through g& so it's younger so I'll describe the evidence

that infers it it's it it moved them so g& had to be there before it could be moved so it's going to be

younger and you could say G and H are faulted that's that's pretty much all you have to say since they're

faulted it's it they had to be there before it can be faulted oh no don't tell me I get a

graph again wow in the grid I'm just going to read because it's just plotting points

plot the positions of stars 1 through six record the star number of each star beside the plot in order to cre this is

weird in order to create the correct shape connect the plots with two lines the first line connects one two5 oh my

gosh okay so we're connecting different dots so let's just label the dots and we'll connect them at the end so what do

they want us to do here we got longitude and latitude longitude and latitude so this

is our X and this is our y okay denb let's go 20.7 45

20.7 up to 45 is there so we're going to put a dot and go one two 20.3 40

20.3 1 2 3 40 that's two 19.8

45 19. 678 45 three I can't believe they're having

a do two graphs that's crazy 20.8 34 20.8

344 four this is weird 20 35 it's like easy to mess

up five 19.5 28 six all right and then they plotted

seven for us so we that's good now what do we have to do connect 126 one 125 okay so this is

just a line connect 423 is that another line oh my God that line was

awful okay there it is identify the planet or Sol system as a period of revolution most similar to the

dust cloud orbiting Tabby star let's see look 700 day period of revolution so we need to find the planet

with about that on page 15 period of revolution 700 days Mars it's

closest okay on to 70 State the name of the short wave of

energy that's most likely blocked out by the dust cloud astronomers observ that a portion

of the electromagnetic have wavelength just shorter than visible light so to get the one that's just

shorter than visible light we have to go to right here visible light just shorter there it is UV is going to be the answer

there looking for so far this is pretty easy I'm not going to lie like I haven't seen we'll

see how the rest of this goes we're already on question 70 I haven't seen anything weird it's a lot of reading and

graph analysis and like reference table stuff but nothing is like crazy at all all right

71 complete the table in your answer booklet by identifying the color and classification for two of the stars in

the constellation of sness based on temperature Luminosity shown on the graph

H oh alberio and Tabby star what am I missing here alberio and Tabby star okay let's

go see what they give us here alberio Tabby star okay look temperature and Luminosity is there and then temperature

and Luminosity is there and they want to know what the color and classification okay so let's start with alario 4400 950

4,400 temperature 950 Luminosity go here 4,400 temperature which is like

here 950 Luminosity 950 which is up here so this is going to be a giant it's going to be a giant and it's going to be

between orange and yellow color right there I'll just write yellow okay and then Tabby star is going to be

6,200 and 1.5 6,200 right here 1.5 is a little bit here main sequence and it's going to be

like yellow or yellow white I'll write yellow again I don't know if it's taking like yellow

white okay okay well look what I did wrong I would actually get this wrong because I literally put the color in the

in the wrong part of the table oh my gosh so this is going to be I good thing I caught that because literally that

would be wrong on the on the regions that's because I'm rushing wow that was pretty bad

anyway ignore that all right 72 identify the two fronts represented along line XY

XY why does it say two I just read that wrong two fronts represented along XY oh there are two so

we got these opposite ones and this is just one so if you don't know your fronts you could go here

and they're right here so opposite side's stationary and the other one's cold so we're just going back this one

was kind of tricky honestly tricky not hard but you just had to like sleuth for that one you had to go in the data table

and find out and then go to reference table and then put them in the table so that one's kind of like a little bit

more involved 71 all right 73 identify the direction towards the

which the low pressure system just located south of New York state will move follows a normal storm track okay

normal storm track means everything's going to go northeast across the United States because we're in the prevailing

Westerly wind belt see everything's going to go northeast so it's going to be

Northeast oh I get a little station model that's fun complete the table by filling the Val of four weather VAR abl

that are represented by the station model where is the station model is it this one I guess is the only

one okay cloud cover none now if you don't know where these things

are you could just go to your little station model cheat sheet right here and it tells you what everything is right

here um air temperature is going to be in the top left that's 46 D point is in the bottom left that is

37 and then this says 217 for the pressure but remember this is a two so you got to put a 10 in front it's going

to be 10 217 and then put a decimal between the last two numbers all right going on

75 all right we got this weird map okay it shows where the total Lunar map map one shows where the lunar

eclipse was visible map two shows where the solar eclipse was visible okay great let's see what it says

determine whether each of the eclipses shown on the map we're visible or not visible to observer in Hawaii okay so

Hawaii is labeled right there so it says it was visible so it's it is in the lunar but Hawaii's over here for the

solar so no so yes to lunar no to solar

easy on the diagram place an x on the moon's orbit to indicate the position on September 7 2025 look September 7 2025

it's a lunar eclipse so to get that lunar eclipse we want it to be over here solar eclipse is over here so lunar

eclipse is on the opposite side of the sun all right State the number degrees Earth's axis is

tilted okay we're tilted 232° that's just a m it's also equ equivalent to the Tropic

of Cancer Tropic Capricorn explain why a focal pendulum located in the Arctic Circle appears to

change directions as it swings focal pendulum is proof that the Earth rotates so the focal pendulum would never change

if the Earth did not rotate Earth rotates if you would have accidentally WR written Earth revolves on that one

you would get get it wrong because fcal pendulum only proves rotation all right finishing up 79

through 81 we got a block diagram this is magnetic field lines they're mirror imaged let's see determine the age and

the Magnetic orientation of the sea floor located 80 km south of the Ridge Center 80 km is going to be so 50 60 70

80 is 2 million years old was that it 2 million years old okay and then the polarity of that section is going to be

this grayish area which is normal easy 80 identify the two plates that are diverging at the southeast Indian Ridge

okay so that's going to be on the reference table page five Southeast Indian Ridge find it it's

right here the plates are going to be the Antarctic plate and the Indian Australian

plate I couldn't have picked shorter names for me to write okay we're on question

801 explain in terms of cooling rate why the crust forms at the ocean R is most likely Basalt okay so cooling rate balt

is extrusive ignas rock so it cooled fast because the when that lava touches the ocean water it just cools

instantaneously so fast cooling rate that's literally all you have to write B salt is extra you don't even

have to write this part but that's that's what I would

WR okay 8 identify the chemical composition of the quartz that makes up Herkimer diamond

okay that's really easy it's another reference aable question go to quartz chemical composition it's right

there sio2 83 he identify one characteristic of a diamond other than its color that

allows it to be used in jewelry oh Herkimer diamond it's made of quartz sorry I'm skipping the fact that

it tells you what a Herkimer diamond is in here I already know what a Herkimer diamond is I didn't really consider that

they're actually quartz crystals so another thing that makes it really

good besides its color allows it to be used in jewelry it's super durable it's it's

so it's hardness quartz has a really high hardness I'm pretty sure there'll be

multiple answers for that you could say crystal shape it's luster stuff like that 84 and ayny

describe identify the orogy that responsible metamorphosis bck now exposed in the ader de

mountains okay so it says it's 500 million years ago so right there we're going to go on

our geologic time scale and go to 500 million years ago which is in this Cambrian Period

we're going to go across is there an ayny around here am I in the wrong

category no it's the bottom of the Cambrian so I see the tonic or ogyny here and the Grenville or ogyny so what

am I missing let's read the question again oh in the ader rondak mountains look Grenville Arney in the

ader de area so it's probably the Grenville orogy because of that Grenville an ayny just means that a

mountain was built like a really main mountain was built but that was just a

uh time scale question it's kind of weird though honestly I didn't really like that question that much 85 in your

answer book last one Circle the term that describes the age of the Herkimer Diamonds compared to the age of the doll

Stone explain how the evidence cited in the reading supports your answer use the term Herkimer Diamonds and dollstone in

your explanation oh my gosh all right let's see here um the Herkimer Diamonds course are

double terminated and found within outcrops around the Mohawk River Valley do stone was formed about 500 million

years ago in a shallow sea while buried cavities were formed in the do stone by the slightly acidic

water as sediment buried crystals grew in the cavities creating the quartz okay so the do stone has to be older than the

quartz because the quartz was formed from the ocean water going into the do stone so is that what it wants us to

say yeah okay so the Herkimer Diamonds Are younger than the doll

Stone the ocean water goes into the do

stone to make the diamonds that's how that's what I would

say all right that was the whole thing so overall I would probably like rate this one like

a it had a lot of reading honestly associated with it but I would say this one was like

medium it wasn't bad I thought it was it was all right if if if I was a if I was a student I would say this was a good

one it was a lot of you were able to figure out a lot of stuff out like off the cusp like you didn't really you know

you didn't really you could figure out charts and read tables and stuff like that you can get the question right on a

lot of them a lot of reference table anyway thanks for sticking with me and I will see you on the next video later