Across
1
Biological catalyst
4
Naturally occurring inorganic solid
5
Gas form of a liquid
8
Hottest planet in solar system
9
Preserved remains of ancient life
11
Magnetic metallic element
13
Element found in all living things
14
Tissue that contracts for movement
Down
2
Disturbance that transfers energy
3
Chemical element in table salt
6
Center of an atom or cell
7
Gas essential for breathing
10
Icy body with a tail near the sun
12
Blocking of light by a celestial body