The tilt of the Earth on it's axis causes:

As we see more and more of the moon, we say it is:

As we see less and less of the moon, we say it is:

The moon goes through all of its phases in about:

The Sun's diameter is about _____ times the Earth's diameter.

The diameter of the moon is about _________ the diameter of the Earth.

Which phrase doesn't describe the Sun?

Which pair does not match?

All of the land drained by a river is called a:

Select all of the natural resources important to Virginia.

Which is NOT a quantitative measurement?

Which is NOT a qualitative measurement?

In an experiment, some things need to stay the same. We call things things:

What part of the wave makes the top wave a louder sound?

Sound travels in a:

Because of the way the molecules are packed, sound travels fastest through a:

Humans use sonar, some animals use:

Which color of visible light has the longest wavelenght?