Across
1
Element found in all living things
5
Disturbance that transfers energy
6
Biological catalyst
7
Second lightest element
Down
2
Magnetic metallic element
3
Tissue that contracts for movement
4
Unit of energy
8
Nerve cell in the brain
Element found in all living things
Disturbance that transfers energy
Biological catalyst
Second lightest element
Magnetic metallic element
Tissue that contracts for movement
Unit of energy
Nerve cell in the brain