Across
1
Particle of light
4
Biological catalyst
6
Reddish electrical conductor
Down
2
Precious yellow metallic element
3
Chemical element in table salt
5
Unit of heredity
7
Smallest unit of an element
8
Tectonic landmass section
Particle of light
Biological catalyst
Reddish electrical conductor
Precious yellow metallic element
Chemical element in table salt
Unit of heredity
Smallest unit of an element
Tectonic landmass section