64 65 matchbox riddles chemical vs. physical change make a 2 door foldable. label the outside tabs:...
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64 65Matchbox Riddles
Chemical vs. Physical Change
Make a 2 door foldable. Label the outside tabs: chemical change and
physical change
Glue on this page, when we are done taking notes
Physical Property OR Chemical PropertyObservation
1. Copper turns green when exposed to the environment.
2. Oxygen is odorless and colorless.
3. The piece of metal is magnetic.
4. The density of water is 1.0 g/ml.
5. Diamonds are a very hard substance.
6. The tree is 8 meters high.
7. Sodium reacts very easily with other elements.
8. Water is a liquid.
9. Baking soda reacts with vinegar.
10. Alka-Seltzer tablets react with water to produce gas.
Recap Video – Physical Change
• The appearance may change but the material is still the same
• Easily Reversible
• Physical Change includes:1. Change in state, size or shape2. Mixing or stirring3. Dissolving4. Melting, freezing or evaporating
ActivityWith a partner, which of the following are physical changes?
Recap Video – Chemical Change
• A chemical reaction causes a new substance to be made
• Hard to reverse
• Signals:– Gas produced– Light created– Color change– Temperature change
ActivityWith a partner, which of the following are chemical changes?
Think – Pair - Share
• Think about how physical and chemical change is different.
• Share your thoughts with a neighbor
How are physical and chemical change different? (Name 3 things)
66 67Matchbox Riddles
Chemical vs. Physical Change
Make a 2 door foldable. Label the outside tabs: chemical change and
physical change
Glue on this page, when we are done taking notes
Create a matchbox for each term below:
Outside: riddle/jokeInside: answerUnder flap: picture
Use at least 4 colors. Glue each one on this page, when you are done
Terms:Physical change, chemical change, physical property, chemical property
Exit TicketUse a post-it to answer the following 2 questions.
1. Which process is an example of a physical change?
a. Wood burning
b. Iron rusting
c. Ice melting
d. Milk souring
2. Which event is a chemical change?
a. The baseball strikes the roof.
b. The roof of the car dents.
c. The paint cracks and chips.
d. The exposed metal rusts.