Across
1
Fourth state of matter
3
Basic unit of life
5
Path of a planet around the sun
6
Measure of matter in an object
8
Amplified beam of light
9
Second lightest element
Down
2
Tissue that contracts for movement
3
Element found in all living things
4
Glass that splits light into spectrum
7
Substance with pH above 7
8
Curved glass that refracts light
10
Unit of heredity
11
Form of thermal energy