Across
1
Tectonic landmass section
4
The Red Planet
5
Basic unit of life
6
Unit of force
8
Measure of matter in an object
10
Push or pull on an object
Down
2
Precious yellow metallic element
3
Biological catalyst
5
Icy body with a tail near the sun
7
Path of a planet around the sun
9
Nerve cell in the brain