Vocabulary
Fill in the blank
100

When the moon appears to be getting bigger is it 

Waxing 

100

A group of stars is called a what?

Constellation 

200

When the moon appears to be getting smaller it is 

Waning 

200

Earth's ____________ takes about 1 year or 365 days. 

revolution 

300

The different shapes of the moon are called

Phases

300

The _____ shines light on the _______ which allows people to see it from Earth. 

The SUN shines light on the MOON

400

The Earth's invisible path as it revolves around the sun is called

Orbit

400

Earth's ________ on its axis causes day and night. 

rotation

500

This make-believe line runs through the Earth's North and South Poles and is tilted

The Earth's axis

500

Earth's rotation takes about ____________.

24 hours