Across
1
Element found in all living things
2
Disturbance that transfers energy
5
Icy body with a tail near the sun
6
Hottest planet in solar system
7
Magnetic metallic element
10
Solid with repeating atomic pattern
Down
1
Reddish electrical conductor
3
Absolute temperature scale unit
4
Ball of burning gas in space
8
Curved glass that refracts light
9
Unit of energy
11
Gas essential for breathing