Across
1
Particle of light
2
Our home planet
3
Unit of heredity
5
Solid with repeating atomic pattern
6
Unit of energy
10
Unit of power
11
Smallest unit of an element
Down
1
Tectonic landmass section
2
Biological catalyst
3
Precious yellow metallic element
4
Natural satellite of Earth
7
Unit of force
8
The Red Planet
9
Path of a planet around the sun