Across
1
Tectonic landmass section
4
Push or pull on an object
5
The Red Planet
7
Gas essential for breathing
8
Ball of burning gas in space
9
Our home planet
10
Preserved remains of ancient life
Down
2
Smallest unit of an element
3
Disturbance that transfers energy
5
Naturally occurring inorganic solid
6
Blocking of light by a celestial body
11
Unit of power