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Classes > world geography > Flashcards

world geography Flashcards

1
Q

the universe is always _______

A

expanding

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2
Q

t/f

the universe includes all planets in space

A

true

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3
Q

space is filled with stars, which make up _____

A

galaxies

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4
Q

stars together

A

galaxy

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5
Q

the galaxy that we live in is called the _____

A

Milky Way

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6
Q

our most visible star is ______

A

the Sun

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7
Q

our planets orbit the _____

A

Sun

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8
Q

what 2 groups are the planets separated into

A

inner(terrestrial)

outer(gas)

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9
Q

name the inner planets

A 
mercury
venus
earth
mars
{smaller planets}
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10
Q

name the outer planets

A 
Jupiter
Saturn
Uranus
Neptune
Pluto
{larger planets}
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11
Q

what does Au stand for

A

Astronomical unit

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12
Q

what is astronomical unit

A

distance from the earth to the sun

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13
Q

1 Au= ___ miles

A

93 million

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14
Q

the earth is about ___ smaller than the Sun

A

100x

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15
Q

the ___ is an average star

A

Sun

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16
Q

the sun stores ___ energy

A

solar

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17
Q

earth is ___ miles wide

A

8,000

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18
Q

earth has ___ moon(s)

A

one

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19
Q

the moon is ____ miles away from Earth

A

240,000

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20
Q

the_______ orbits around us every 29.5 days

A

moon

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21
Q

a leap year happens every ___ years

A

4

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22
Q

it takes earth ____ days to orbit Sun

A

365 1/4

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23
Q

the force that works between the sun earth and the moon

A

gravity

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24
Q

_____is our moon

A

Luna

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25
Q

what is the reason that we have day and night

A

we are rotating

26
Q

Earth sits on a ____

A

axis

27
Q

Earth rotates on _____

A

its axis

28
Q

the Earth rotates and ____

A

revolves

29
Q

how long does one complete spin of the earth on its axis

A

24 hours

30
Q

the earth rotates in a ___ to ____ direction

A

west to east

31
Q

what does 1/4 do every 4 years

A

makes a leap year

32
Q

the Earth is tilted ____

A

23.5 degrees

33
Q

tilt causes the north/south poles to be pointed towards or away from the ___ as its ____

A

sun

rotating

34
Q

what causes us to have seasons

A

tilt

35
Q

different points on earth get different amounts of ______

A

solar energy

36
Q

warm, low latitude areas

A

tropics

37
Q

cold, high latitude areas

A

polar regions

38
Q

which season has long days

A

winter

39
Q

what season has long days

A

summer

40
Q

what seasons have distributions of sunlight

A

fall

spring

41
Q

tropics are ___ most of the time

A

warm

42
Q

tropics have ___ seasons

A

alternating wet/dry seasons

43
Q

tilt causes the north and south hemispheres to have____ seasons at the _____

A

opposite

same time

44
Q

what does equinoxes mean

A

equal notes

45
Q

when do equinoxes occur

A

when the poles are pointed toward or away from the sun

46
Q

when are the 2 solistes

A

December 21

June 21

47
Q

dec. solstice-northern hemisphere

A

shortest day

first day of winter

48
Q

dec. solistice-southern hemipshere

A

longest day

first day of summer

49
Q

in the December solstics, anything ___ the artic circle gets no sunlight

A

below

50
Q

anything below the antarctic circle gets ______ during the December solstice

A

24 hours of sunlight

51
Q

june solstice-northern hemisphere

A

longest day

first day of summer

52
Q

june solstice-southern hemisphere

A

shortest

first day of winter

53
Q

in June solstice, arctic circle gets ____

A

24 hours on sunlight

54
Q

in June solstice, antarctic circle will get _____

A

24 hours of no sunlight

55
Q

when are the 2 equinoxes

A

march 21

sept 22

56
Q

march equinoxe-n.h.

A

spring

57
Q

march equinoxe-s.h.

A

fall

58
Q

sept equinoxe-n.h.

A

fall

59
Q

sept equinoxe-s.h.

A

spring

60
Q

the universe is made up of _______

A

all existing things

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