Across
- 2. a change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties
- 5. the amount of matter in an object
- 7. a column on the periodic table
- 9. a substance that consists of only one type of atom
- 11. a type of mixture in which the individual substances are not evenly mixed
- 16. a chart of the elements arranged into rows and columns according to their physical and chemical properties
- 17. positively charged particle in the nucleus of an atom
- 18. a force that holds two or more atoms together
- 20. anything that has mass and takes up space
- 21. the mass per unit volume of a substance
Down
- 1. a change in the size, shape, or form or state of matter that does not change the matter's identity
- 3. the force that a column of air applies on the air or a surface below it
- 4. to form a solution by mixing evenly
- 6. a type of mixture in which the individual substances are evenly mixed
- 8. the attraction among molecules that are alike
- 10. matter that can vary in composition
- 12. a type of substance containing atoms of two or more different elements chemically bonded together
- 13. a large area of air that has uniform temperature, humidity, and pressure
- 14. a substance that consists of just one type of atom
- 15. matter with a composition that is always the same
- 19. a small particle that is a building block of matter