Across
1
Compound containing oxygen
3
Precious yellow metallic element
4
Unit of force
8
Form of thermal energy
11
Blocking of light by a celestial body
Down
2
Magnetic metallic element
3
Unit of heredity
5
Solid with repeating atomic pattern
6
Glass that splits light into spectrum
7
Mass per unit volume
9
Preserved remains of ancient life
10
Tissue that contracts for movement