Across
1
Tectonic landmass section
4
Unit of heredity
5
Substance with pH above 7
7
Unit of force
8
Ball of burning gas in space
9
Amplified beam of light
Down
1
Glass that splits light into spectrum
2
Unit of power
3
Biological catalyst
6
Hottest planet in solar system
10
Precious yellow metallic element
11
Our home planet