Across
1
Measure of matter in an object
2
Magnetic metallic element
4
Push or pull on an object
7
Tissue that contracts for movement
8
Tectonic landmass section
9
Element found in all living things
10
Smallest unit of an element
Down
1
The Red Planet
3
Blocking of light by a celestial body
5
Nerve cell in the brain
6
Ball of burning gas in space
11
Molten rock beneath Earth surface