Across
1
Disturbance that transfers energy
3
Magnetic metallic element
6
Push or pull on an object
7
Ball of burning gas in space
8
Second lightest element
11
Fourth state of matter
13
Substance with pH below 7
14
Element found in all living things
Down
2
Blocking of light by a celestial body
4
Smallest unit of an element
5
Path of a planet around the sun
9
Our home planet
10
Chemical element in table salt
12
Precious yellow metallic element