Unit 2: Matter - Science Review

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Across
  1. 3. A characteristic observed without changing a substance.
  2. 7. Matter with definite shape and volume.
  3. 8. Point Temperature where a solid becomes a liquid.
  4. 10. Amount of matter in an object.
  5. 11. Ability of a substance to dissolve.
  6. 12. A testable prediction or educated guess.
  7. 15. A written representation of a chemical reaction.
  8. 17. Atom An atom with equal numbers of protons and electrons.
  9. 18. Point Temperature where a liquid becomes a gas.
  10. 19. Positively charged particle in the nucleus.
  11. 21. The process scientists use to investigate and explain the natural world.
  12. 24. Bond formed by transfer of electrons.
  13. 25. Amount of space an object occupies.
  14. 29. Bond formed by sharing electrons.
  15. 30. Change that does not create a new substance.
  16. 32. Matter is not created or destroyed in reactions.
  17. 34. Ability to transfer heat or electricity.
  18. 35. Chart that organizes elements by atomic number.
Down
  1. 1. A pure substance made of one type of atom.
  2. 2. Matter is made of particles in constant motion.
  3. 4. Matter with definite volume but changing shape.
  4. 5. Modern model of the atom showing electron locations.
  5. 6. Neutral particle in the nucleus.
  6. 9. Region around the nucleus where electrons are found.
  7. 13. How shiny a material is.
  8. 14. The smallest unit of matter.
  9. 16. A statement describing what consistently happens in nature.
  10. 20. An atom that gains or loses electrons and becomes charged.
  11. 22. A well-supported explanation backed by evidence.
  12. 23. Scientific explanation of how atoms and matter are structured based on evidence.
  13. 26. Negatively charged particle outside the nucleus.
  14. 27. Ability to be hammered into thin sheets.
  15. 28. Mass divided by volume.
  16. 31. Matter with no definite shape or volume.
  17. 33. Atoms of the same element with different numbers of neutrons.