Across
1
Force that attracts objects together
5
Blocking of light by a celestial body
9
Curved glass that refracts light
10
Naturally occurring inorganic solid
Down
2
Absolute temperature scale unit
3
Smallest unit of an element
4
Push or pull on an object
6
Infectious microscopic agent
7
Element found in all living things
8
Unit of heredity
11
Disturbance that transfers energy
12
Gas form of a liquid