Across
1
Reddish electrical conductor
3
Measure of matter in an object
4
Amplified beam of light
7
Positive particle in nucleus
9
Push or pull on an object
12
Glass that splits light into spectrum
Down
2
Second lightest element
4
Curved glass that refracts light
5
Center of an atom or cell
6
Gas form of a liquid
8
Substance with pH below 7
10
Magnetic metallic element
11
Icy body with a tail near the sun
13
Chemical element in table salt