Across
- 1. anything that has mass and occupies volume
- 6. basic unit of light
- 7. Xe
- 8. changing directly from solid to gas
- 9. device used to magnify
- 11. lithium, sodium and potassium are called
- 15. it is the study of matter and the changes it undergoes
- 16. a reproductive organ of a male plant
- 19. rocks formed by extreme heat and pressure
- 20. this scientist created atomic theory
- 23. group 7 reactive coloured gas
- 24. the unit of power
Down
- 2. rotational force is also known as
- 3. it is the natural science of matter , energy and the relationships between them
- 4. the colour that blue litmus paper turns under acidic conditions
- 5. NA
- 10. KOH
- 12. Li
- 13. horizontal row on the periodic table
- 14. the mechanical process to separate solids from the fluids
- 17. the only metal that is in liquid form at room temperature
- 18. the distance between identical points of two sucessful waves
- 21. it is defined as mass divided by volume
- 22. state of matter so hot that nuclei and electrons separate