The sun is a source of energy because its power can be used by others. 

• True
• False

A light year is the distance light travels in

• one hour
• one year
• one revolution
• one week

The word "germ" describes most microorganisms. 

• True
• False

The sun moves in and out of view every day, giving us daylight and darkness because....

• The Earth's axis is on a tilt thus giving more light to different places on Earth.
• The Earth's circular orbit.
• The Earth's rotation pattern.
• The Earth's revolution pattern. 

A beam of light from the sun takes about 8 seconds to reach us on earth. 

• True
• False

Jean Bernard Leon Foucault's experiment with a giant pendulum proved...

• The sun moves around Earth.
• The moon revolts around the Earth.
• Stars are multiple light years away.
• That Earth is constantly spinning. 

Unicellular organisms have multiple cells. 

• True
• False

The Sun is classified as a what?

• Star
• Planet
• Polaris
• Both A and C

Light travels about how many miles in a year?

• over  5 trillion
• over 5 million
• over 5 thousand
• Light travels too fast for scientists to measure. 

Can microorganisms be helpful?

• Yes
• No