3. 100 200 400 300 400 vocabulary Physical & chemical changes Signs of a chemical change More vocab 300 200 400 200 100 500 100

4. Row 1, Col 1 __________is a mixture with parts that blend so that it looks the same everywhere, even under a microscope solution

5. 1,2 a burning match is an example of a __________change Chemical

6. 1,3 changes _______________ (bleach removes _____ from clothing by means of a chemical change) color

7. 1,4 part of a solution in the smaller amount and that is dissolved solute

8. 2,1 chemicals on the left side of a chemical equation reactants

9. 2,2 melting ice is an example of a ___________ change physical

10. 2,3 forms ________________ (the silver in a spoon reacts with oxygen or sulfur to form...) tarnish

11. 2,4 chemicals on the right side of the chemical equation product

12. 3,1 the change of state directly from a solid to a gas sublimation

13. 3,2 during a chemical reaction, matter is not created or _________ but only changes form. destroyed

14. 3,3 releases __________ (as an antacid reacts with water, bubbles of carbon dioxide ___form) gas

15. 3,4 formed by the combination of two or more elements compound

16. 4,1 temperature at which a substance melts Melting point

17. 4,2 Name two things you can do to make something dissolve quicker (this is an essay ques on the test so you should Also know why this helps something dissolve) Stir, add heat (gets the molecules moving faster)

18. 4,3 forms a _______________ (when 2 solutions form a ______, a chemical change has occured) precipitate

19. 4,4 part of the solution in the larger amount that dissolves the other substances solvent

20. 5,1 is a physical combination of substances mixtures

21. 5,2 What signs tell you that a log burning in a fire is a chemical change? (also an essay question but it will be a Different example – will need to know All 5 signs of a chemical change) gas released,log changes color,heat/light energy released

22. 5,3 releases __________ (a release of ____as light or heat can indicate a chemical change) energy

23. 5,4 The melting point of water is ____ 0 C