Earth Science: Earth, Sun, Moon

What causes the seasons?

• The distance between Earth and the sun

• The tilt of Earth's axis

• Length of time until the solstice

• Location on Earth relative to the equator

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An equinox occurs when

• neither hemisphere is tilted toward or away from the sun.

• the Northern Hemisphere is tilted away from the sun.

• the Northern Hemisphere is tilted toward the sun.

• Earth’s axis is parallel to the sun’s rays.

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From new moon phase to full moon phase, you see

• an increasing amount of the lit side of the moon.

• a decreasing amount of the lit side of the moon.

• the same amount of the lit side of the moon.

• more of the lit side, then less of the lit side of the moon.

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For a solar eclipse to occur,

• the sun must be directly between Earth and the moon.

• the moon must be directly between Earth and the sun.

• the moon must be directly behind Earth.

• Earth must be directly between the sun and the moon.

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Celestial event that occurs when the Moon moves into Earth's shadow.

• solar storm

• blackout

• lunar eclipse

• solar eclipse

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During a total lunar eclipse the moon is in Earth’s

• corona.

• penumbra.

• umbra.

• orbit.

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You are less likely to see a total solar eclipse than a total lunar eclipse because

• the moon’s shadow covers all of Earth during a solar eclipse.

• new moon phases occur less often than full moon phases.

• only people on the daytime side of Earth can see a solar eclipse.

• the moon’s umbra only covers a small area on Earth’s surface.

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What are the phases of the moon?

• The repeating pattern of night and day

• The monthly pattern of lunar and solar eclipses

• The sequence of seasons the moon causes on Earth

• The different shapes of the moon as seen from Earth

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Tides are caused mainly by

• Earth’s rotation on its axis, which causes water to move.

• differences in how much the sun pulls on different parts of Earth.

• strong winds blowing water onto coasts.

• differences in how much the moon and the sun pull on different parts of Earth.

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One complete revolution of Earth around the sun takes about

• 24 hours.

• 250 days

• 365 days

• 6 months.

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