Across
1
Chemical element in table salt
3
Amplified beam of light
5
Icy body with a tail near the sun
Down
1
Ball of burning gas in space
2
Unit of energy
4
Fourth state of matter
6
Substance with pH above 7
7
Mass per unit volume
Chemical element in table salt
Amplified beam of light
Icy body with a tail near the sun
Ball of burning gas in space
Unit of energy
Fourth state of matter
Substance with pH above 7
Mass per unit volume