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Grade Six Science > Space > Flashcards

Space Flashcards

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1
Q

what is the order of the earths layers from the inside out

A

the inner core, outer core, mantel, crust,

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2
Q

what are the 4 layers of the atmosphere

A

troposphere, stratosphere, mesosphere, thermosphere

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3
Q

how thick is the earths crust

A

5 to 70 km thick

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4
Q

what creates thin crust

A

ocean

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5
Q

continents are thicker but….

A

less dense

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6
Q

as we go down in the crust the air levels gets….

A

higher

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7
Q

what are tectonic plates

A

the are surrounded by every country on earth

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8
Q

what layer of the earth is solid but slow moving

A

mantle, magma

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9
Q

what is a fault line

A

were to tectonic plates meet

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10
Q

how thick is the mantle

A

2890 km thick

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11
Q

what layer on earth is responsible for the magnetic field

A

outer core

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12
Q

what year was the inner core discovered

A

1936

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13
Q

what part of the atmosphere helps keep the planet safe

A

magnetic field

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14
Q

the atmosphere is held by…

A

gravity

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15
Q

what is another name for the stratosphere

A

ozone layer

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16
Q

x rays and UV rays can be found is which layer of the atmosphere

A

thermosphere

17
Q

what provided 99.5 light in the whole world

A

stars

18
Q

what kind of star is the sun

A

main sequence yellow dwarf

19
Q

one solar day = how many earth days

A

28

20
Q

the primary fuel for the sun is…

A

hydrogen

21
Q

what is the percentage of hydrogen in the core of the sun

A

75 percent

22
Q

what is the percent of hydrogen outside of the core

A

24 percent

23
Q

what is accretion

A

the gathering of stars

24
Q

what is nebula

A

when stars gather together and die

25
Q

how far is the sun from the earth

A

150 million km

26
Q

how long does it take a star to die

A

15 years

27
Q

what does solar mean

A

anything to do with the sun

28
Q

the dark cooler spots on the sun are called

A

sun spots

29
Q

what is solar flare

A

bursts of solar radiation

30
Q

coronal mass ejection

A

bits of solar plasma getting blasted into space

31
Q

corona

A

outer layer of the sun that is very hot

32
Q

solar wind

A

steam coming of of the sun

33
Q

when the northern lights are red what is the oxygen level

A

high

34
Q

when the northern lights are yellow the oxygen level is

A

low

35
Q

the inner core is…

A

solid

36
Q

the outer core is…

A

liquid

37
Q

the mantel is ….

A

semi-solid

38
Q

the crust is…

A

solid

Grade Six Science (7 decks)

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