Sun Moon Earth Relationship

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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NGSS.MS-ESS1-1

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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NGSS.MS-PS2-4

When does a spring tide happen?

• When the moon is in the first quarter

• When the sun’s rays are most intense

• When the sun, moon, and Earth are all lined up

• When the sun and moon form a right angle with Earth

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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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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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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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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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One complete revolution of Earth around the sun takes about

• 24 hours.

• 250 days

• 365 days

• 6 months.

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Because the moon rotates once for each revolution around Earth,

• you see some phases more than others.

• a different side of the moon faces Earth each day.

• you never see the far side of the moon from Earth.

• the far side of the moon is visible only during the full moon phase.

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