8th Grade: Earth, Sun, Moon Unit Review

If Earth was NOT tilted on its axis, which of the following would no longer occur?

• Change between Day and Night
• Change of seasons
• Summer
• Earth's rotation

The Earth orbits the Sun because of what?

• Friction
• Electromagnetic attraction
• Gravity
• Interia

True or False:  On Earth, the sun appears to rise and set because of the Sun's rotation. 

• True
• False- it's because of Earth's rotation
• False- it's because of Earth's revolution
• False- it's because of the sun's revolution

If the Northern Hemisphere is tilted AWAY from the sun, which of the following statements will be TRUE?

• The Southern Hemisphere will have MORE daylight hours.
• The nights in the Northern Hemisphere will be shorter.
• The Northern Hemisphere is experiencing Summer.
• The Southern Hemisphere will have a longer night. 

True or False:  The different phases of the moon are caused by the Earth blocking out a portion of the Sun's light therefore shading the moon. 

• True- at different times in our orbit, the Earth casts a shadow on the moon
• False- the different phases are caused by clouds in our atmosphere
• False- there are different phases because only a part of the moon's surface is facing the earth

In early sunlight, shadows appear _____________, but as the day goes on, the shadows get ____________.

• longer, shorter
• shorter, longer

In its rotation around the Earth, the Moon produces spring tides when it is located where?

• At either the North or South poles
• On either one "side" of Earth or the other

True or False- For a Solar Eclipse to be visible from Earth, the Moon must be BETWEEN the Earth and the Sun.

• True
• False- the Earth must be between the moon and the Sun.

1 year = 1 ___________

• Revolution of Earth around the Sun
• Rotation of Earth in its orbit
• Rotation of the Sun around the Earth
• Rotation of the Moon around Earth

In the same area, the time between one low tide and the next low tide is usually about ___________.

• one day
• 12 hours
• 24 hours
• 48 hours