every type of wave has a different ___.

Ultraviolet or UV rays travel __ than visible light rays.

Infrared or IR waves travel __ than visible light rays, and snakes can see them.

Which three colors can our eyes detect?

Our eyes are most sensitive to red and green light. When red and green visible light rays combine, our eyes interpret it as which color?

What instrument allows astronomers to figure out what elements make up the sun?

What is the most abundant element that makes up the sun?

In the core of the sun, hydrogen and helium fuse in the process of:

In the convective zone of the sun, the density decreases, and it creates what kind of currents?

The photosphere of the sun is not plain--it has mounds of hot plasma called:

Which is the thinner component of the sun's atmosphere?

Our magnetic field in Earth deflects radiation from what?

What are dark areas on the sun called?

Does the moon reflect light or does it generate its own light?

Craters on the moon are what kins of shape?

Mountains and valleys on the moon are thought to be what?

The earth rotating around its axis gives us what?

The earth revolving around the sun gives us what?

The effect of the earth being tilted and revolving around the sun gives us what?

Different energy fields from the moon, sun, and earth give us what?