Across
1
Blocking of light by a celestial body
5
Reddish electrical conductor
6
Biological catalyst
7
Compound containing oxygen
9
Disturbance that transfers energy
11
Gas form of a liquid
Down
2
Force that attracts objects together
3
Absolute temperature scale unit
4
Push or pull on an object
6
Our home planet
8
Gas essential for breathing
10
Positive particle in nucleus