3. Physical vs. Chemical
Fold a blank piece of white paper in half.
One side will be for physical properties
and the other side will be for chemical
What are they?
4. Is it Chemical or Physical?
Read the directions with your group
Who is doing what in the experiment?
Raise your hand when you are ready to
5. Is it chemical or physical?
Return graduated cylinders and baking
soda to front table
Rinse off spoon and return to cup with
Throw away the three cups
Make sure table is cleaned off
Start working on questions
7. Is it Chemical or Physical?
1. Describe the properties of the ingredients that
you used to make the glue.
2. Describe the properties of the glue that you
3. Is making glue an example of a chemical
change or a physical change? Explain how you
4. Did a change in energy occur with this change in
8. Changes in Matter Homework
What is a physical change?
What is a chemical change?
How are changes in matter related to
changes in energy?
9. Physical Vs. Chemical
Each station has a different item or items in a before state and an
after state. You will have to go to each station.
1. Write down what items are at the station in the “Before” section.
2. Write down what items are at the station in the “After” section.
(What is different?)
3. Determine whether or not the items have changed chemically or
4. Write your reason for choosing that type of change.
5. Repeat for all of the stations.
6. Once complete, return to your seat.
1. Physical and
6. Yes. Exothermic
change; no, every
change in matter
involves a change
11. Exothermic change
13. Chemical Vs. Physical Changes
Is it Physical or
1 Ice Water Physical
Cooked pasta Physical
3 Stick of chalk Crumbled
4 new penny Tarnished
6 Unlit match Lit match Chemical
7 salt/ water Saltwater Physical
Bubbly water Chemical
9 Pink paper Red/ blue
18. Properties/ Changes
____________ properties can be observed without chemically changing
____________ properties describe how a substance interacts with other
substances. ____________ have definite shapes and definite volumes.
____________ have indefinite shapes and definite volumes. ____________ have
indefinite shapes and indefinite volumes.
Phase changes are ____________ changes. ____________ point is the
temperature at which a liquid turns to a solid. It is also equal to the
____________ point which is the temperature at which a ____________ turns
to a ____________. ____________ point is the temperature at which a liquid
turns to a gas, and ____________ point is the temperature at which a gas turns
to a liquid. Occasionally, a solid turns directly into a gas without turning into a
liquid first. This is called ____________.
19. Changes Reading
Read the article on Physical and
Answer the questions
You may work with a group