Science Ch. 13 Flashcards

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1
Q

The______ is the star at the center of our solar system.

A

Sun

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2
Q

Earth’s ______ is an imaginary line that passes through the North and South Poles.

A

Axis

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3
Q

The cycle of d ay and night occurs because Earth ______, or spins on its axis.

A

Rotates

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4
Q

Each ______ represents one of the hours in the day.

A

Time zones

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5
Q

If you travels _____ from one time zone to the next, the times becomes one hour later.

A

East

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6
Q

If you travel _____ from one time zone into another , the time becomes on e hour earlier.

A

West

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7
Q

The ______ is in the middle of the Pacific Ocean .

A

International Date line

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8
Q

If you go_____ across the International Date Line you’ll into the next day.

A

West

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9
Q

The seasonal changes are a result of the _____ of the Earth’s axis.

A

Tilt

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10
Q

Travels in a path around the sun is called______.

A

Revolve

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11
Q

The path Earth takes as it revolves is its ______.

A

Orbit

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12
Q

One orbit takes about _____ days.

A

365

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13
Q

The _____ is the imaginary line going all the way around Earth halfway from the North and south Poles.

A

equator

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14
Q

The day when the amount of daylight is the greatest is called ____.

A

summer solstice

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15
Q

The day with the least amount of day light is called the _______.

A

Winter solstice

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16
Q

The days when the daylight and darkness are about equal are called the ______.

A

Equinoxes

17
Q

A _____ is any natural body that revolves around a planet.

A

Moon

18
Q

A _____ is a low, bowl- shaped are on a surface of a planet or a moon.

A

crater

19
Q

There is no ____, _____, and _____ on the moon.

A

Erosion, water ,and almost no atmosphere.

20
Q

The side of the moon that we could not see is called the____.

A

Dark side

21
Q

Why does the moon seems to give off its own light?

A

…. because sun light reflects on the moon.

22
Q

A _____ is on of the shapes the moon seems to have as it orbits Earth.

A

Moon phase

23
Q

The cycle phases of the moon takes _____.

A

29 1/2 Earth’s days

24
Q

An ______ occurs when body in space blocks the light from reaching another body in space.

A

Eclipse

25
Q

A _____ occurs when the moon cast a shadow on Earth, only the outer atmosphere of the sun can be seen.

A

Solar eclipse

26
Q

A _______ occurs when the full moon passes through the shadow of Earth. Earth blocks the sun’s light and made the moon look red because the light pass the Earth’s atmosphere and made it red.

A

Lunar eclipse

27
Q

The bending of light is called _____.

A

Refraction

28
Q

A _____ is huge ball of very gases in space.

A

Star

29
Q

______ are dark cooler areas on the sun.

A

Sunspots

30
Q

Which color of stars are hottest?

A

blue ones

31
Q

Which color of the stars are coolest?

A

Red

32
Q

A ________ is a group of stars that is named after religious or mythical object or animal.

A

Constellation

33
Q

A ____ is a body that revolves around a star

A

Planet

34
Q

The _____ is everything that exists.

A

Universe

35
Q

A _____ is a group stars, gas, dust.

A

Galaxy