Expert Science Crossword
Puzzle #31 • 19×19 grid
1
9
2
8
9
12
7
8
9
12
7
8
12
7
8
3
12
7
8
12
8
11
12
4
8
10
11
8
10
11
10
11
10
5
10
6
Across
1.H2O liquid
2.Slow moving ice mass
3.Smallest unit of matter
4.Luminous celestial object
5.Force pulling objects together
6.Preserved ancient remains
Down
7.Earth's natural satellite
8.Negatively charged particle
9.Our solar system's star
10.Electromagnetic radiation
11.Basic unit of life
12.Element in all life