Module 1 Vocabulary 7th Grade

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Across
  1. 2. a chemical change in which atoms of one or more substances rearrange to make one or more new substance
  2. 6. a starting substances in a chemical reaction
  3. 7. a type of change in matter where the substances change into another substance with different chemical and physical properties
  4. 8. the amount of space a substance takes up
  5. 9. the mass per unit volume of a substance
  6. 11. a property of matter than can be observed or measured without changing the matter
  7. 12. chemical energy released when atoms form bonds
  8. 13. occurs when substances react with oxidizing agents, changing it to a new substance
  9. 14. the law of conservation of ______ states that energy is always transferring, but cannot be created or destroyed
  10. 15. a reaction where more energy is required to break the bonds of the reactants than is released when products form
Down
  1. 1. a property of matter than can be observed as it changes to a different type of matter
  2. 3. occurs when a substance reacts with another, forming a new substance
  3. 4. the ability of a type of matter to burn easily
  4. 5. the law of conservation of ______ states that the mass of the reactants is the same before and after a chemical reaction
  5. 7. a number placed in front of an element symbol or chemical formula in an equation
  6. 10. a reaction where more energy is released when the product is formed than is required to break the bonds
  7. 12. a substance produced by a chemical reaction
  8. 16. the amount of matter in an object