Across
1
Form of thermal energy
3
Positive particle in nucleus
5
Natural satellite of Earth
7
Unit of energy
Down
2
Element found in all living things
3
Particle of light
4
Biological catalyst
6
Precious yellow metallic element
Form of thermal energy
Positive particle in nucleus
Natural satellite of Earth
Unit of energy
Element found in all living things
Particle of light
Biological catalyst
Precious yellow metallic element