Across
1
Hottest planet in solar system
3
Element found in all living things
4
Second lightest element
5
Push or pull on an object
7
Unit of electric potential
8
Center of an atom or cell
10
Blocking of light by a celestial body
Down
1
Infectious microscopic agent
2
Tissue that contracts for movement
6
Tectonic landmass section
9
Magnetic metallic element