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Science 7 Quarter 4 > Test 3/28/23 > Flashcards

Test 3/28/23 Flashcards

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1
Q

Basic facts abt troposphere

A

Tropo= change
75% of atmospheres mass
All weather
Only makes up 2%
All water in the atmosphere
Alt ⬆️ temp ⬇️

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2
Q

Basic fact abt stratosphere

A

Strato= layers
20% of the mass
Absorbs UV
Alt ⬆️ temp ⬆️

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3
Q

Basic facts abt mesosphere

A

Meso= middle
Coldest layer
Where most meteoroids r born
Alt ⬆️ temp ⬇️

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4
Q

Basic facts abt ionosphere

A

Iono= charged particle
Alt ⬆️ temp ⬇️
Home to charged particles
Earth meets space
Reflects radio waves

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5
Q

Basic facts abt thermosphere

A

Thermo= heat
Hottest layer
Alt ⬆️ temp ⬇️
Absorbs sun radiation

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6
Q

Basic facts abt exosphere

A

Exo= outside
No color
No air
Satillites

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7
Q

Meteoroids

A

Umbrella term for all

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8
Q

Meteors

A

Shooting stars

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9
Q

Meteorites

A

Strikes earth

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10
Q

Waxing

A

Moon getting bigger (new-full)

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11
Q

Waning

A

Moon shrinking (full-new)

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12
Q

Crescent

A

Sliver (before/after new moon)

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13
Q

Gibbous

A

Big (before/after full moon)

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14
Q

New moon

A

No light

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15
Q

Solar eclipse

A

Sun is blocked by moon

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16
Q

Lunar eclipse

A

Moon is blocked by earth

17
Q

Path of totality

A

Umbra blocks light of sun

18
Q

Umbra

A

All sun blocked area

19
Q

Penumbra

A

Not a complete eclipse, still some sunlight

20
Q

Waxing = _____ side lit up

A

Right

21
Q

Waning= _______ side lit up

A

Left

22
Q

What are some major gasses in the atmosphere

A

Nitrogen, oxygen, hydrogen

23
Q

What is a pause

A

A break between layers of the atmosphere where temperatures are stable

24
Q

Coldest layer

A

Mesosphere

25
Q

Hottest layer

A

Thermosphere

26
Q

Thickest layer

A

Thermosphere

27
Q

Thinnest layer

A

Troposphere

28
Q

Densest layer

A

Troposphere

29
Q

Least dense layer

A

Exosphere

30
Q

Most water is found in the ______

A

Troposphere

31
Q

Earths diameter

A

Miles= 7,917
Km= 12,756

32
Q

What are auroras

A

Light shows in the sky normally green or purple made by damaged particles bunched together

33
Q

How many satellites

A

7,000

Science 7 Quarter 4 (1 decks)

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