The bubble of air surrounding the earth is the 

• sun
• atmosphere
• moon
• constellation

When you throw a ball into the air, it comes back to the ground because of ______________.

• gravity
• atmosphere
• telescopes
• rotation

What do we call the path the earth takes around the sun?

• constellation
• atmosphere
• orbit
• season

A rock that flies through outer space is called a ____________.

• planet
• meteor
• moon
• sun

A tool used to look at objects that are far away is called a _____________.

• thermometer
• ruler
• telescope
• hammer

A group of stars is called a ________________.

• sun
• telescope
• belt
• constellation

What do we call a person from Earth who travels into outer space?

• astronaut
• astronomer
• martian
• alien

The light and heat for our solar system comes from the _______.

• earth
• moon
• meteor
• sun

What is the name of the planet on which we live?

• Mercury
• Venus
• Earth
• Mars

What revolves around the earth?

• sun
• meteors
• moon
• Mercury