Across
1
Particle of light
2
Measure of matter in an object
5
Unit of power
6
Fourth state of matter
7
Our home planet
Down
2
Naturally occurring inorganic solid
3
Icy body with a tail near the sun
4
Gas form of a liquid
8
Basic unit of life
Particle of light
Measure of matter in an object
Unit of power
Fourth state of matter
Our home planet
Naturally occurring inorganic solid
Icy body with a tail near the sun
Gas form of a liquid
Basic unit of life