Across
1
Hottest planet in solar system
4
Measure of matter in an object
5
Ball of burning gas in space
6
Curved glass that refracts light
9
Disturbance that transfers energy
Down
1
Infectious microscopic agent
2
Magnetic metallic element
3
Solid with repeating atomic pattern
4
Natural satellite of Earth
7
Absolute temperature scale unit
8
Unit of electric potential