Hard Science Crossword
Puzzle #8 • 15×15 grid
1
10
2
10
7
10
7
8
9
10
3
7
8
9
10
6
7
8
9
10
6
7
8
9
10
6
4
7
8
9
6
7
8
9
6
9
6
5
9
Across
1.Smallest unit of matter
2.Electromagnetic radiation
3.Earth's natural satellite
4.Luminous celestial object
5.H2O liquid
Down
6.Element in all life
7.Force pulling objects together
8.Celestial body orbiting a star
9.Negatively charged particle
10.Mountain that erupts lava