The force of gravity between two objects is affected by ___________.

• distance
• weight
• mass
• gravity

Deep in space, Earth's force of _________ has less effect.

• friction
• weight
• gravity
• acceleration

Objects that are _________ have a greater attraction between them.

• close
• farther
• in space
• on earth

A measure of the amount of matter in an object

• mass
• weight
• gravity
• pounds

Which motion takes us around the Sun?

• rotation
• revolution
• centrifugal
• random

what is the reason for the season?

• Joy
• tilt 
• revolution
• rotation

The Sun, Moon and stars appear to move across the sky because...

• Earth revolves around the sun
• The moon orbits Earth
• Earth rotates on an axis
• The Moon orbits the Sun

How long does it take the moon to make one revolution?

• 365 days
• 1 month
• 24 hours
• 1 week

Does the Moon travel around Earth or around the Sun?

• Earth
• Sun

What is the center of the earth called?

• Core
• Lava
• Crust
• Mantle