Across
- 6. Neutral subatomic particle found in the nucleus.
- 9. Substances formed during a chemical reaction.
- 10. Temperature at which a substance changes from a solid to a liquid.
- 14. Elements that conduct electricity at high temperature but don't at low temperatures
- 15. Type of chemical reaction in which one element replaces another in a compound.
- 20. Mass per unit volume of a substance.
- 21. Substances that release hydrogen ions in water and have a pH less than 7.
- 22. Method of separating solid particles from a liquid.
- 23. Positively charged subatomic particle found in the nucleus.
- 25. The amount of matter in an object.
- 26. Heterogeneous mixture in which particles settle out over time.
- 27. Homogeneous mixture where one substance dissolves in another
- 28. Number of protons in an atom's nucleus.
- 29. Device used to measure weight.
- 31. Device used to measure mass.
- 33. Process of changing directly from a solid to a gas.
- 35. Unit of force
- 37. Type of chemical bond formed between oppositely charged ions.
- 38. Method of separating particles based on size
- 39. Method to measure the volume of an irregularly shaped object.
- 42. Principle stating that the buoyant force on an object equals the weight of the fluid displaced by the object.
- 45. Substance being dissolved in a solution.
- 46. Type of chemical reaction in which two or more substances combine to form a new compound.
- 47. Type of chemical reaction in which a compound breaks down into simpler substances.
Down
- 1. Substances present at the start of a chemical reaction.
- 2. Temperature at which a substance changes from a liquid to a gas.
- 3. Highly reactive nonmetals
- 4. Process of changing from a liquid to a gas.
- 5. Fog and smoke are both examples of ____.
- 7. The amount of space occupied by an object.
- 8. The smallest particle of an element that still has the same chemical properties of the element
- 11. Elements that don't react naturally with other elements
- 12. Negatively charged subatomic particle.
- 13. The number of protons plus the number of neutrons
- 16. Matter cannot be created or destroyed in a chemical reaction.
- 17. Chemical reaction that absorbs energy.
- 18. Elements that are typically shiny, malleable, and good conductors of electricity.
- 19. Reaction between an acid and a base to form water and a salt.
- 24. Atoms with a positive or negative charge.
- 30. Type of vaporization that occurs at the surface of a liquid.
- 32. Type of colloid consisting of two immiscible liquids.
- 34. Substances that release hydroxide ions in water and have a pH greater than 7.
- 36. Chemical reaction that releases energy.
- 40. Substance doing the dissolving in a solution.
- 41. Central part of an atom containing protons and neutrons.
- 43. The smallest particle of a compound that still has all of the properties of the compound
- 44. The force exerted on an object due to gravity.