Across
1
Substance with pH below 7
3
Disturbance that transfers energy
5
Measure of matter in an object
7
Tissue that contracts for movement
8
Chemical element in table salt
10
Solid with repeating atomic pattern
Down
2
Icy body with a tail near the sun
4
Fourth state of matter
6
Substance with pH above 7
9
Curved glass that refracts light