Across
1
Gas essential for breathing
2
Tissue that contracts for movement
3
Our home planet
5
Gas form of a liquid
6
Tectonic landmass section
9
Ball of burning gas in space
Down
2
Molten rock beneath Earth surface
4
Push or pull on an object
7
Hottest planet in solar system
8
Substance with pH above 7
10
Second lightest element