Across
1
Molten rock beneath Earth surface
3
Particle of light
4
Icy body with a tail near the sun
7
Second lightest element
Down
1
Natural satellite of Earth
2
Gas form of a liquid
5
Disturbance that transfers energy
6
Our home planet
Molten rock beneath Earth surface
Particle of light
Icy body with a tail near the sun
Second lightest element
Natural satellite of Earth
Gas form of a liquid
Disturbance that transfers energy
Our home planet