Across
- 3. temperature where a substance changes states
- 4. when bonds are broken
- 10. things we properties of something we can observe with our senses
- 12. making a substances PH level closer to 7
- 18. when atoms are bonded
- 19. can be shaped into a wire and conducts electricity
- 22. will break down other materials
- 23. how well it can stretch
- 25. two or more atoms bonded together
- 26. amount of matter in something
- 30. neutrons,electrons,and protons
- 32. if the nucleus explodes or decays
- 33. electrons outer shell of electrons
- 34. energy exits
- 35. will light on fire
- 36. type of bond where valence electrons are shared
- 37. changing something on a chemical level
- 38. how a material reacts with others
Down
- 1. energy needed to get rid of an electron
- 2. neutrons and protons
- 5. info you get from your senses
- 6. two or more substances together but can separate
- 7. harms living things
- 8. subatomic particle with a positive charge
- 9. how shiny something is
- 11. atoms where the number of protons and electrons aren't equal
- 13. energy enters
- 14. ion with a negative charge
- 15. basic building blocks of all matter
- 16. type of bond where the valence electrons are taken or given
- 17. same thing chemically but different state of matter
- 20. how well something conducts electricity
- 21. ion with a positive charge
- 24. subatomic particle with a negative charge
- 27. subatomic particle with no charge
- 28. an idea based on observations
- 29. can change shape
- 31. first letter of the element
- 39. how acidic or basic something is