Across
1
Tissue that contracts for movement
4
Substance with pH above 7
7
Glass that splits light into spectrum
8
Magnetic metallic element
10
Unit of electric potential
11
Precious yellow metallic element
Down
2
Hottest planet in solar system
3
Disturbance that transfers energy
5
Blocking of light by a celestial body
6
Solid with repeating atomic pattern
9
Preserved remains of ancient life
12
Natural satellite of Earth