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Social Studies and Science > Planets - Sheet1 > Flashcards

Planets - Sheet1 Flashcards

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1
Q

Mercury

A

What is the smallest planet?

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2
Q

Venus

A

Which planet is covered with clouds?

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3
Q

Earth

A

Which planet is the only one with liquid water and an atmosphere that allows life?

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4
Q

Mercury

A

Which planet is closest to the sun?

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5
Q

Mars

A

Which planet is known as the red planet?

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6
Q

Venus

A

Which planet is the hottest?

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7
Q

patterns

A

Objects in the sky have ________________ of motion.

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8
Q

orbit

A

The path a planet takes around the sun is called an _______________.

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9
Q

rotation

A

Night and day are caused by the _______ of the earth.

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10
Q

east/west

A

The sun appears to move across the sky from ___________ to __________.

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11
Q

star

A

The sun is a medium-sized ____________.

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12
Q

sun

A

The ________________ has most of the mass of our solar system.

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13
Q

energy

A

The sun is the major source of ____________ for the earth.

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14
Q

planet

A

A _________________ is a ball of rock or gas that orbits a star.

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15
Q

rocky

A

The four inner planets are called _________ planets.

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16
Q

the sun

A

What is the center of our solar system?

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17
Q

Jupiter

A

Which planet is the largest?

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18
Q

Saturn

A

Which planet is best know for its rings?

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19
Q

Jupiter

A

Which planet has a red spot?

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20
Q

Uranus

A

Which planet spins like a top on its side?

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21
Q

Neptune

A

Which planet is farthest from the sun?

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22
Q

asteroids

A

Small rocky objects in space that orbit the sun are called ______________.

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23
Q

telescope

A

A tool that helps us see objects that are far away is called a ______________.

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24
Q

constellations

A

Stars appear to form patterns in the sky called _______________.

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25
Q

astronomers

A

People who study the stars and planets are called ___________________.

26
Q

gas giants

A

The four inner planets are called rocky planets. What are the four outer planets called?

27
Q

Mars and Jupiter

A

What two planets have an asteroid belt between them?

28
Q

Pluto

A

What dwarf planet was once classified as a planet?

29
Q

Venus

A

What is the hottest planet?

30
Q

Mercury

A

Which planet is the closest to the sun?

31
Q

Mercury

A

What is the smallest planet?

32
Q

Venus

A

Which planet is covered with clouds and second from the sun?

33
Q

Earth

A

Which is the only planet with liquid wate and an atmosphere that allows life?

34
Q

Mars

A

Which planet is red?

35
Q

Saturn

A

Which planet is best known for its rings?

36
Q

Uranus

A

Which planet spins on its side?

37
Q

the sun

A

What is the major source of energy for the earth?

38
Q

the earth’s rotation

A

What causes night and day on the earth?

39
Q

an imaginary line that Earth spins around as it rotates

A

axis

40
Q

the path of one object in space around another object

A

orbit

41
Q

a device people use to observe distant objects with their eyes

A

telescope

42
Q

any natural body that revolves around a planet

A

moon

43
Q

the different shapes that Earth’s moon seems to have

A

phase

44
Q

The _________ ________,(about June 21st in the Northern Hemisphere) is the day of the year that has the most sunlight.

A

summer solstice

45
Q

The __________ _________,(about December 21st) is the day that has the most hours of darkness.

A

winter solstice

46
Q

The ______ _________(about September 21st) and the _______ _______(about March 21st) are the days the hours of daylight and darkness are the same.These dates mark the beginning of autumn and of the spring.

A

autumn equinox

47
Q

Dark areas on the Moon’s surface are large flat areas called ________.

A

mares

48
Q

Is the Italian word for sea

A

mare

49
Q

The moon’s surface is _______,_______, and full of __________. It has __________ and_________,smooth areas and hilly ones. There is no ________ water.

A

rocky

50
Q

Why does the moon have more craters than the Earth?

A

Unlike Earth,which has a thick layer of air around it,the moon has no atmosphere to protect it, so the rocks from space crash into it.

51
Q

__________ are low areas with high rims that form when rocks and other objects crash into the moon.

A

craters

52
Q

Why do craters last a long time on the moon?

A

There is no water to wear the rims down.

53
Q

__________ is a small planetlike body that revolves around Earth, instead of the Sun.

A

Moon

54
Q

When the moon is visible at night,why can we see it?

A

Light from the sun reflects from the moon.

55
Q

The phases of the moon follow the same pattern about every __________ days.

A

29 1/2

56
Q

Phases of the Moon

A

New Moon—–First Quarter—–Full Moon—–Third Quarter—-New Moon

57
Q

On one of those days,all of the lit side of the moon can be seen from Earth. When this happens, we say there is a _________ ________.

A

full moon

58
Q

When we see none of the lit side of the moon at all, on that night, the moon is called a _____ _____.

A

new moon

59
Q

What occurs after three years have 365 days each?

A

Leap Year

60
Q

Most calenders are based on the _______ year.

A

solar

61
Q

Every four years we have a __________ year

A

Leap

Social Studies and Science (18 decks)

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