Hard Science Crossword
Puzzle #6 • 15×15 grid
7
7
1
7
8
7
8
7
2
7
8
6
3
6
6
6
6
4
9
10
6
9
10
9
10
5
10
Across
1.Earth's natural satellite
2.Vibration traveling through air
3.Smallest unit of matter
4.Capacity to do work
5.Group of bonded atoms
Down
6.Preserved ancient remains
7.Element in all life
8.Basic unit of life
9.Genetic blueprint molecule
10.Luminous celestial object