Crosswords Puzzle

Horizontal Words

1. An explanation of a hypothesis that has been proven true by different experiment (16)
3. Containing the greatest possible number of hydrogen atoms (9)
5. Liquid mixture (8)
6. The quality of being hot; high temperature (4)

Vertical Words

2. Matter consists of many, very small particles which are constantly moving (22)
4. Make (a liquid) thinner or weaker by adding water or another solvent to it (6)