Across
1
Unit of power
3
Icy body with a tail near the sun
6
Unit of energy
7
Reddish electrical conductor
8
Natural satellite of Earth
9
Ball of burning gas in space
10
Substance with pH above 7
11
Magnetic metallic element
Down
2
Smallest unit of an element
3
Solid with repeating atomic pattern
4
Blocking of light by a celestial body
5
Unit of electric potential
7
Basic unit of life