1. Physical and Chemical Properties

2. Vocabulary Physical Property Viscosity Conductivity Physical change
Malleability
Melting point
Boiling point
Flammability
Chemical change
Reactivity

3. Physical Properties
Physical Properties- describes the appearance of the substance or something that can be measured
Ex. color, odor, density, melting point, boiling point and hardness
Viscosity- resistance of a liquid to flowing (molasses or lava)
Conductivity- ability to allow heat to flow
Malleability- ability to hammered without breaking

4. Chemical Properties
Chemical Properties- describe the way a substance reacts to form other substances
Examples
Flammability- burns in presence of oxygen
Reactivity- how easily it forms compounds with other substances
Rusting, fermentation

5. Physical Changes
Physical Changes- change the appearance of the substance but it does not become something new.
Changes in state during heating or cooling such as melting or freezing
Changes in the size or shape such as cutting a piece of metal into several pieces

6. Chemical Changes Also known as a chemical reaction
Occurs when a substance reacts and forms one or more new substances
Ex. Wood burns into ash, cooking, growing, and fireworks

7. Evidence for Chemical Changes
Change in color (when you didn’t add that color)
Change in temperature (when you didn’t add or take away heat)
Production of a gas (bubbles) or a solid (precipitate)

8. Is it a chemical or physical change?
Sugar dissolving in tea
Chemical Change
Physical Change

9. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

10. Correct!

11. Is it a chemical or physical change?
Logs burning
Chemical Change
Physical Change

12. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

13. Correct!

14. Is it a chemical or physical change?
Breaking water up by separating it into hydrogen and oxygen
Chemical Change
Physical Change

15. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

16. Correct!

17. Is it a chemical or physical change?
Cutting paper
Chemical Change
Physical Change

18. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

19. Correct!

20. Is it a chemical or physical change?
Crushing an aspirin
Chemical Change
Physical Change

21. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

22. Correct!

23. Is it a chemical or physical change?
Metal rusting
Chemical Change
Physical Change

24. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

25. Correct!

26. Is it a chemical or physical change?
Lighter fluid burning
Chemical Change
Physical Change

27. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

28. Correct!

29. Is it a chemical or physical change?
An egg rotting
Chemical Change
Physical Change

30. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

31. Correct!

32. Is it a chemical or physical change?
An egg breaking
Chemical Change
Physical Change

33. OOPS! Did it change size, color, shape (Physical Change)? or
Did it become different matter (Chemical Change)?

34. Correct!

35. The End