READY Workbook--Ch. 4 & 5 P. 45-47 & 49-54

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Across
  1. 4. If a substance fizzes or heat or light is produced, then a chemical _____ has occurred (Ch. 5)
  2. 8. The total mass of all objects is equal to the ______ of the mass of its parts (Ch. 4)
  3. 10. A _____ change happens when one substance changes into another substance (Ch. 5)
  4. 12. Chemical changes are usually not this? They cannot simply be changed back to the way they were (Ch. 5)
  5. 13. The temperature at which a liquid becomes a gas (Ch. 5)
  6. 14. Describes how much matter is in an object (Ch. 4)
  7. 15. When a solid is mixed into a liquid and disappears, we say the solid has dissolved. The result is a __________ (Ch. 5)
  8. 18. A physical property is anything that can change without changing the true ________ of the substance that we are observing (Ch. 5)
  9. 20. When a solid goes directly to a gas (Ch. 5)
Down
  1. 1. A chemical property that has the ability to burn in the presence of oxygen (Ch. 5)
  2. 2. Color, odor, texture, magnetism, conductivity, or states of matter are all examples of ________ properties (Ch. 5)
  3. 3. When a gas goes directly to a solid--like snow in the winter (Ch. 5)
  4. 5. When properties are described in words as descriptions (usually drawn from your 5 senses) Ch. 4
  5. 6. If you were to take a chair and break it apart into many pieces; then pile up the parts, it's mass would be the same as if the chair was in one piece. This is an example of the Law of ________ of Matter (Ch. 4)
  6. 7. Solids, liquids, and matter are called _______ of matter (Ch. 5)
  7. 9. Properties that are measured using numbers (Ch. 4)
  8. 11. When two or more substances combine physically, it is called a ____________ (Ch. 5)
  9. 15. Which physical state of matter is made up of closely-packed atoms or molecules? Solids or Liquids (Ch. 5)
  10. 16. A word that describes anything that has mass and takes up space (Ch. 4)
  11. 17. Some examples of chemical changes are pH, toxicity, flammability, reactivity, and this? (Ch. 5)
  12. 19. If an ice cube melts in your hand to liquid, this is an example of a physical change. True or False (Ch. 5)