Across
1
Positive particle in nucleus
4
Icy body with a tail near the sun
5
Measure of matter in an object
6
Infectious microscopic agent
7
Our home planet
Down
1
Fourth state of matter
2
Tectonic landmass section
3
Absolute temperature scale unit
Positive particle in nucleus
Icy body with a tail near the sun
Measure of matter in an object
Infectious microscopic agent
Our home planet
Fourth state of matter
Tectonic landmass section
Absolute temperature scale unit