Properties of Matter Lab Purpose: To observe how a fluid cornstarch solution reacts to changes in temperature and pressure. Materials: · · Clear plastic cup · Newspapers · Crushed ice · Hot water · Watch or clock · Spoon · Measuring cups · Cornstarch · One bowl deep enough to hold the plastic cup Procedure: 1. Cover your kitchen table or counter with the newspaper to help make clean up easier. 2. Add 1 cup of cornstarch to ½ cup of water in the plastic cup. Stir with the spoon until a thick fluid forms. If needed, more water/cornstarch can be added until you have a thick fluid. 3. While over the newspapers, pour some of the cornstarch fluid into your hand. Tilt your hand slightly and record your observations on how the cornstarch behaves below. 4. While holding your hand over the cup, squeeze the fluid cornstarch. Record your observations below. 5. Place your fluid cornstarch back into the plastic cup. 6. Half-fill the bowl with crushed ice. Place the plastic cup into the ice. Leave it there for 5 minutes until the cornstarch has reached a colder temperature. 7. Pour some of the fluid cornstarch into your hand. Tilt your hand slightly and record your observations on how the cornstarch behaves below. 8. While holding your hand over the cup, squeeze the cooled fluid cornstarch. Record your observations below. 9. Place your fluid cornstarch back into the plastic cup. 10. Empty the crushed ice from the bowl. Half-fill the bowl with hot water. Place the plastic cup into the hot water and allow it to sit for 5 minutes. 11. Pour some of the fluid cornstarch into your hand. Tilt your hand slightly and record your observations on how the cornstarch behaves below. 12. While holding your hand over the cup, squeeze the warmed fluid cornstarch. Record your observations below. 13. Place your fluid cornstarch back into the plastic cup. Conclusions: Answer in complete sentences. Make a general statement relating the properties of fluid cornstarch to temperature and pressure (when you squeezed your hand). Does this match what you’ve learned about the motion of particles at different temperatures? Explain. ...

1. Properties of Matter Lab
Purpose:
To observe how a fluid cornstarch solution reacts to changes in
temperature and pressure.
Materials:
·
· Clear plastic cup
· Newspapers
· Crushed ice
· Hot water
· Watch or clock
· Spoon
· Measuring cups
· Cornstarch
· One bowl deep enough to hold the plastic cup
Procedure:
1. Cover your kitchen table or counter with the newspaper to
help make clean up easier.
2. Add 1 cup of cornstarch to ½ cup of water in the plastic cup.
Stir with the spoon until a thick fluid forms. If needed, more
water/cornstarch can be added until you have a thick fluid.
3. While over the newspapers, pour some of the cornstarch fluid
into your hand. Tilt your hand slightly and record your
observations on how the cornstarch behaves below.
4. While holding your hand over the cup, squeeze the fluid
cornstarch. Record your observations below.

2. 5. Place your fluid cornstarch back into the plastic cup.
6. Half-fill the bowl with crushed ice. Place the plastic cup into
the ice. Leave it there for 5 minutes until the cornstarch has
reached a colder temperature.
7. Pour some of the fluid cornstarch into your hand. Tilt your
hand slightly and record your observations on how the
cornstarch behaves below.
8. While holding your hand over the cup, squeeze the cooled
fluid cornstarch. Record your observations below.
9. Place your fluid cornstarch back into the plastic cup.
10. Empty the crushed ice from the bowl. Half-fill the bowl
with hot water. Place the plastic cup into the hot water and
allow it to sit for 5 minutes.
11. Pour some of the fluid cornstarch into your hand. Tilt your
hand slightly and record your observations on how the
cornstarch behaves below.
12. While holding your hand over the cup, squeeze the warmed
fluid cornstarch. Record your observations below.
13. Place your fluid cornstarch back into the plastic cup.

3. Conclusions: Answer in complete sentences.
Make a general statement relating the properties of fluid
cornstarch to temperature and pressure (when you squeezed
your hand). Does this match what you’ve learned about the
motion of particles at different temperatures? Explain.