Across
1
Tissue that contracts for movement
4
Gas form of a liquid
6
Substance with pH below 7
7
Element found in all living things
8
Blocking of light by a celestial body
9
Disturbance that transfers energy
Down
2
Absolute temperature scale unit
3
Ball of burning gas in space
4
Hottest planet in solar system
5
Molten rock beneath Earth surface
10
Reddish electrical conductor