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