Across
1
Precious yellow metallic element
2
Unit of force
3
Disturbance that transfers energy
5
Form of thermal energy
8
Second lightest element
Down
2
Nerve cell in the brain
4
Molten rock beneath Earth surface
6
Particle of light
7
Unit of energy
Precious yellow metallic element
Unit of force
Disturbance that transfers energy
Form of thermal energy
Second lightest element
Nerve cell in the brain
Molten rock beneath Earth surface
Particle of light
Unit of energy