Across
1
Push or pull on an object
4
Infectious microscopic agent
5
Unit of power
6
Gas form of a liquid
8
Second lightest element
10
Icy body with a tail near the sun
11
Positive particle in nucleus
Down
2
Smallest unit of an element
3
Reddish electrical conductor
7
Chemical element in table salt
9
Path of a planet around the sun