The document discusses the differences between physical and chemical changes. A physical change affects the physical properties of a substance but does not change its chemical composition, and can usually be reversed. A chemical change results in an entirely new substance through changes in chemical bonds, and cannot be undone. Examples of each type of change are provided to illustrate the differences. The document then describes a game where teams must identify if examples given are physical or chemical changes.

1. Chemical and
Physical Change
Can You Tell the Difference?

2. Physical Changes
• A physical change is one that affects one or
more physical properties of a substance.
Physical changes can usually be undone.
Some Examples:
•Crumpling up paper
•Breaking a piece of chalk in two
•Dissolving salt in water
•Melting ice
•Sanding wood

3. Chemical Changes
• A chemical change is when a substance is changed
into an entirely new substance. Chemical changes
cannot be undone.
Some Clues that tell you a
change is chemical:
1. Change in color Some Examples:
2. Fizzing or foaming
•Fireworks
3. Heat Generated
•Vinegar and Baking Soda
4. Sound
5. Light •Burning Something
6. Odor •Getting a Perm
•Glow Sticks

4. Change It Up!!
The class has been split into two teams.
Each team needs to form a straight line. The
person at the front of each line will answer
first. Their teammates must remain silent.
An example of a change will be given. The
first person to correctly identify whether the
change is physical or chemical returns to the
end of their teams’ line. The other person
returns to their seat. The team with the most
members left by the end wins the game.
Let’s Play!

5. Crumpling Up A
Piece Of Paper

6. Fire Crackers

7. Melting An Ice
Cube

8. Erosion of
Sandstone

9. Shooting a Gun

10. Deflating A Ball

11. Sewing a Quilt

12. Dying Easter Eggs

13. Glow Sticks

14. Vinegar and
Baking Soda

15. Digesting Food

16. Getting a Perm

17. Making Kool-Aid

18. Freezing Juice To
Make Popsicles

19. Sanding Wood

20. Painting A Fence

21. Weaving Cloth

22. A Light Bulb
Emitting Light

23. Braiding
Someone’s Hair

24. Breaking Chalk In
Half

25. Painting Your
Nails

26. Mixing The
Ingredients To
Make Bread

27. Baking The Bread

28. Fertilizing Your
Lawn

29. Getting a Hair Cut

30. Speeding Up Your
Car With NOS

31. Dissolving Salt In
Water

32. Putting On
Make-up

33. Hand Warmers

34. Neon Lights

35. Sandblasting Your
Jeans