1 / 33

Chemical vs. Physical Change

Chemical vs. Physical Change. 6 th Grade. There are two types of properties:. Physical Properties. Chemical Properties. Physical Properties can be observed without changing the matter:. shape state (solid, liquid, or gas) density color smell appearance.

niles
Download Presentation

Chemical vs. Physical Change

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Chemical vs. Physical Change 6th Grade

  2. There are two types of properties: Physical Properties Chemical Properties

  3. Physical Properties can be observed without changing the matter: • shape • state (solid, liquid, or gas) • density • color • smell • appearance

  4. Physical Properties • of this ball: • round shape • solid • red color

  5. Chemical Properties can only be tested by changingthe matter: • flammability (will it burn?) • oxidation (will it rust?) • volatility (will it explode?) • reactivity (will it react to chemicals?)

  6. Chemical Properties • of this flask: • not flammable • won’t rust • can explode if • over heated • won’t react to acid

  7. What are some Physical Propertiesfor this hamburger? • solid • round bun • many colors • smells tasty

  8. What are some Chemical Properties for this hamburger? • can burn • (except lettuce • and pickles) • won’t rust • won’t explode • will react to • stomach acid • by dissolving

  9. What are some Physical Properties for propane gas? • gas • no fixed shape • invisible • Smells like rotten eggs • very light density

  10. What are some Chemical Properties for propane gas? • will burn easily • gas won’t rust • (but tank will) • can explode! • can react with • other chemicals

  11. Is it a Physical Property or a Chemical Property? Strawberries are red with a green top. Physical Property!It doesn’t change the strawberry to check its color.

  12. Is it a Physical Property or a Chemical Property? Apples will oxidize and turn brown if left out in air. Chemical Property! It will change the apple to wait for it to brown.

  13. Is it a Physical Property or a Chemical Property? Copper wire conducts electricity Physical Property! It doesn’t change the copper wire to check conductivity.

  14. Is it a Physical Property or a Chemical Property? Alka Seltzer fizzes in water Chemical Property! It will change the Alka Seltzer to dissolve it in water.

  15. Is it a Physical Property or a Chemical Property? The density of gold is 19.3 g/mL Physical Property! It won’t change the gold to calculate its density.

  16. Physical Change • A change that alters the appearance of a material but doesn’t make that material into something new • Examples: • Tearing Paper • Chopping Wood • Molding Clay • Cutting Hair • Mixing Salt and Pepper • DOES NOT form a new substance

  17. Chemical Change • A change in matter that produces a new substance • Examples: • Fireworks • Food rotting • Lighting a match

  18. 5 clues to a Chemical change • Color Change • Gas given off (bubbles) • Temperature Change (hot or cold) • Precipitate formed – two liquids form a solid • New substance formed

  19. Physical or Chemical Change? Physical Change

  20. Physical or chemical change? • Hammering wood together Physical Change

  21. Physical or chemical Change? • Rusty Bike Chemical Change

  22. Physical or Chemical change? • Melting Butter Physical Change

  23. Physical or chemical change? • Rotting food Chemical Change

  24. Physical or Chemical Change? • Mixing Kool-Aid powder in water Physical Change

  25. Physical or chemical change? • Mowing the grass Physical Change

  26. Physical or chemical change? • Bleaching your hair Chemical Change

  27. Physical or chemical change? • Fireworks exploding Chemical Change

  28. Physical or chemical change? • Squeezing oranges to make orange juice Physical Change

  29. Physical or chemical change? • Frying an egg Chemical Change

  30. Physical or chemical change? • Burning leaves Chemical Change

  31. Physical or chemical change? • Cream being whipped Physical Change

  32. Physical or chemical change? • Burnt toast Chemical Change

  33. Physical or chemical change? • Melting Ice cream Physical Change

More Related