Expert Science Crossword
Puzzle #23 • 19×19 grid
7
8
7
8
1
11
7
8
11
7
8
10
11
2
8
10
11
7
8
10
11
7
8
10
11
7
3
4
9
12
9
12
5
9
12
9
9
6
Across
1.Genetic blueprint molecule
2.Group of bonded atoms
3.H2O liquid
4.Vibration traveling through air
5.Preserved ancient remains
6.Luminous celestial object
Down
7.Negatively charged particle
8.Force pulling objects together
9.Electromagnetic radiation
10.Earth's natural satellite
11.Gas we breathe
12.Our solar system's star