Across
1
Tissue that contracts for movement
2
Biological catalyst
3
Path of a planet around the sun
6
Molten rock beneath Earth surface
8
Element found in all living things
9
Chemical element in table salt
10
Absolute temperature scale unit
Down
1
Naturally occurring inorganic solid
2
Blocking of light by a celestial body
4
Natural satellite of Earth
5
Substance with pH above 7
7
The Red Planet