Across
1
Our home planet
4
The Red Planet
5
Blocking of light by a celestial body
Down
2
Ball of burning gas in space
3
Form of thermal energy
4
Measure of matter in an object
6
Reddish electrical conductor
7
Positive particle in nucleus
Our home planet
The Red Planet
Blocking of light by a celestial body
Ball of burning gas in space
Form of thermal energy
Measure of matter in an object
Reddish electrical conductor
Positive particle in nucleus