Expert Science Crossword
Puzzle #29 • 19×19 grid
9
12
1
9
12
9
12
9
12
9
2
7
9
7
9
7
9
3
7
7
11
7
8
4
11
8
11
8
11
8
5
11
8
10
11
10
6
10
Across
1.Electromagnetic radiation
2.Vibration traveling through air
3.Negatively charged particle
4.Mountain that erupts lava
5.Force pulling objects together
6.Celestial body orbiting a star
Down
7.Gas we breathe
8.H2O liquid
9.Group of bonded atoms
10.Genetic blueprint molecule
11.Element in all life
12.Earth's natural satellite