Across
1
Glass that splits light into spectrum
4
Unit of heredity
6
Amplified beam of light
8
Element found in all living things
9
Smallest unit of an element
11
Magnetic metallic element
Down
2
Push or pull on an object
3
Fourth state of matter
5
Absolute temperature scale unit
7
Our home planet
10
Substance with pH above 7
12
Reddish electrical conductor