Across
1
Nerve cell in the brain
4
Blocking of light by a celestial body
5
Fourth state of matter
6
Naturally occurring inorganic solid
8
Measure of matter in an object
Down
2
Magnetic metallic element
3
Second lightest element
5
Tectonic landmass section
7
Chemical element in table salt
9
Ball of burning gas in space
10
Molten rock beneath Earth surface