Across
1
Precious yellow metallic element
3
Blocking of light by a celestial body
4
Tissue that contracts for movement
6
Magnetic metallic element
9
Fourth state of matter
10
Smallest unit of an element
11
Glass that splits light into spectrum
Down
2
Preserved remains of ancient life
4
Molten rock beneath Earth surface
5
Solid with repeating atomic pattern
7
Substance with pH below 7
8
Icy body with a tail near the sun