Hard Science Crossword
Puzzle #22 • 15×15 grid
1
7
7
7
2
8
6
7
8
9
6
7
8
9
6
8
3
9
6
8
9
10
6
8
9
10
4
8
9
10
8
9
5
Across
1.Electromagnetic radiation
2.Force pulling objects together
3.Earth's natural satellite
4.Group of bonded atoms
5.Smallest unit of matter
Down
6.Push or pull on an object
7.Vibration traveling through air
8.Negatively charged particle
9.Mountain that erupts lava
10.Genetic blueprint molecule