Transcript The Effects of Air Pressure

The Effects of Air Pressure
Can Crush LAB
Problem:
What will happen when a can with 15 ml
of boiling water is turned upside down
and dunked into a bowl of ice water?
Hypothesis
If a can containing 15 ml of boiling water is
quickly turned upside down into a bowl of
ice water, then the air molecules will (move
faster, farther apart, become less dense
and rise to the top of the can OR move
slower, closer together, become more
dense and fall to the bottom of the can),
AND (the can will blow up OR the sides
of the can will crush in) because the air
pressure outside the can is (less OR
greater) than the air pressure inside the
can.
Materials
Get from your lab handout.
Procedure
Get from your lab handout.
Experimental Design
Control Group:
The open can as it is heating up on the hot plate, because
there is equal pressure inside and out as steam is allowed to
escape.
Experimental group:
The can that is dunked into ice water
Independent Variable:
the temperature
Dependent Variable:
the pressure; and reaction in the can
Data
Draw a picture of the can before and after
it has been dunked into the ice water.
BEFORE
AFTER
Summary and Conclusion
Summary: Write what
happened
Conclusion:
Was your original problem
answered?
Did the data support your
hypothesis? Why / Why not?
Then: Answer the questions
on your lab report sheet and
staple it into your log book.