Science
Across
- 4. used to detect the heat of something
- 5. the separation of dissolved substances by running a solvent along absorbent paper
- 6. how many groups on the periodic table
- 8. were are non-metals found on the period table
- 9. group 1 on the periodic table
- 10. the attraction of + metal ions
- 12. Br2+2KCl=
- 16. why mendeleev left gaps on the periodic table
- 20. a cell that defends against pathogens
Down
- 1. fluornie
- 2. had the first ideas about atoms
- 3. can detect illegal drugs
- 7. number of protons
- 11. the smallest part of an element that can still be recognised as that element
- 13. separation of a liquid from a mixture
- 14. produced by a type of white blood cell that attaches to pathogens
- 15. the boiling point of ethanol
- 17. a type of shape memory alloy made from nickel and titanium
- 18. a substance that dissolves to make a solution
- 19. a substance made up of only one type of atom