The Index Card Show

1
Stop The Leak

2
Procedure
First fill the bottle (or canister) to the top
with water leak out of holes. Second refill and
let the water leak a little bit. Lastly put the
cap on (the water should stop completely)
3
Observation
When adding water to the bottle with the cap off
the water leaked. The water came out at a
constant flow. As the water leaks out, the
bottle contracts. When you put the cap on the
bottle, the leak stops immediately.
4
Theory
With the cap off, the atmosphere around the
bottles opening forces down on the water surface
of the bottle. The result is water leaks out
of the holes on the side of the bottle. With the
cap on, there is no more force and it stops the
leaking. With the cap on there is no pressure on
the bottle therefore less pressure to force the
water out.
5
Conclusion
The air pressure on the outside of the bottle is
pushing unto the bottle, therefore it stops the
water from leaking out of the holes. When you
put the cap on it stops the pressure from pushing
down on the water.
6
The End
7
The Gas Experiment
8
What is used?

• 600ml beaker
• 50ml beaker
• 100ml of water
• Hot Plate (warning they are hot)
• Johns law T /\, P /\ / T \/, P\/ ( V is con )
• Charles law T /\, V /\ / T \/, V \/ ( P is con)

9
The Process.

• Fill 600ml beaker with 100ml of water
• Place 50ml beaker upside down in 600ml beaker
• Turn on hot plate and place 600ml beaker on hot
  plate
• Wait for water to boil and remover 600ml beaker
• Look at what happens!

10
Results

• When the 600ml beaker is pulled off hot plate,
  the water in the beaker moves into the 50ml
  beaker. It moves into the smaller beaker due to
  Temp. and Pres. change.
• If reheated the water drains itself from the
  smaller beaker into the 600ml beaker. and again
  results happen as before.

11
The End.
12
Gas Station 7
"The Power of the Atmosphere"
13
What Happened
First we took an empty cold pop can and filled
it up with 20 mL of water. Then we placed it on a
hot plate and let it sit until it started to
steam from the top. After the pop can started to
steam then we picked up the can with tongs and
we flipped the can upside down into a beaker of
ice cold water. After placing the pop can in the
water then it crushed. Every time we tried it,
the can got a whole in it after it crushed.
14
How it works

• when the can has water and is boiling on the hot
  plate steam comes out of the can because it is
  trying 2 equalize it self with the outside.
• so Low pressure is being produced when the can in
  on the cold water. From molecules moving fast to
  slow a vacuumed is created and water is pulled
  in. The can is crushed because the pressure is to
  little for the volume so the there is vacuumed
  which causes the can to crush.

15
Full of hot air?
16
What happened?

• When the water inside the flask began to get hot
  it raised the hot air molecules into the balloon
  which caused the balloon to fill up with air.

17
Why did this work with molecular motion?

• The temperature from the heated waters gives the
  flask a higher pressure than the outside air
  which blew up the balloon to equalize the
  pressure.

18
2nd time( Without balloon on top)

• We boiled the water in the flask without the
  balloon on top. Than after the water came to a
  boiling stage we than put the balloon on top and
  the balloon was taken in to the flask. After that
  happened we put the flask inside a glass of ice
  water and the balloon blew up inside of the flask
  to the shape of the flask.

19
How did this work with molecular motion?

• Charles Law is the way to explain this stage. As
  we put the balloon on the hot flask the balloon
  was pulled inside the flask just a little. Than
  as we put the flask in the cold water with the
  balloon, it was pulled into the flask even harder
  to by the temperature of the cold water.
• Charles Law Temp. (up), Volume (up)
• Temp. (Down), Volume (Down)

20
THE END!!!!
21
The Index Card Show
"the Index Card Show"

• Brooke, Nate, Mike and Lidia

22
Procedure

• 1st fill the Erlenmeyer flask with tap water- all
  the way to the top
• 2nd Place an index card on top of the flask
• 3rd Flip the flask/index card upside down.
• 4th remove your bottom hand, but leave the index
  card

1st fill the Erlenmeyer flask with tap water- all
the way to the top 2nd Place an index card on top
of the flask 3rd Flip the flask/index card upside
down. 4th remove your bottom hand, but leave the
index card
23
How it works

• According to Johns law, the warmer the water the
  more the paper sticks to the flask
• The colder the water, the less pressure the paper
  has to stick on to the flask.