Across
1
Solid with repeating atomic pattern
5
Magnetic metallic element
6
Amplified beam of light
7
Unit of energy
8
Element found in all living things
Down
1
Icy body with a tail near the sun
2
Molten rock beneath Earth surface
3
Ball of burning gas in space
4
Center of an atom or cell
6
Curved glass that refracts light
9
Second lightest element
10
Group of similar cells
11
Smallest unit of an element
12
Glass that splits light into spectrum