Instructions experiment #1:
Step 1: Put a jar underwater wait until it is filled with water.
Step 2: Turn the jar around so that the opening is facing the bottom of the tank what will happen?
Qualitative Observations: Water stays in the jar.
Step 1: Put the jar underwater until it's half filled with water.
Step 2: Turn the jar around so that the opening is facing the bottom of the tank.
Step 3: Put another jar fill it to the top of water and turn it so that the opening is facing the bottom of the tank.
Step 4: Put the mouths of both jars together and try pouring the air out.
Qualitative Observations: An air bubble moves from one jar to the other. Air pushes out the water.
Instructions experiment #3:
Step 1: Inflate one of the balloons to a diameter of about 10 cm. Deflate it. Do not tie it!
Step 2: Practice putting the mouth of the balloon over the mouth of the flask.
Step 3: Put about 3 scoops of baking soda into the balloon.
Step 4: Measure 10mL of vinegar using the measuring cylinder.
Step 5: Pour the 10mL of vinegar into an Erlenmeyer flask.
Step 6: Put the balloon over the mouth of the flask. Empty the baking soda from the balloon into the flask.
Step 7: Wait and let the balloon fill up with gas. Shake the flask gently to complete the reaction faster.
Step 8: Remove the balloon and tie a knot in it.
Qualitative Observations: The vinegar and baking soda formed bubbles witch caused the ballon to inflate.
1. Inflate a balloon to about the same size as the balloon in Method 2.
- Tie a knot in the balloon.
- Compare the gas in the first balloon to the second balloon, and write down your observations.Qualitative Observations: The baking soda and vinegar balloon fell faster because it was heavier than just air.
I wanted to see what would happen if you added much more vinegar and baking soda I found this link.
- Get a big balloon from Mr. Pro.
- Inflate the balloon to a size that’s a little wider than the mouth of the jar.
- Submerge the balloon into the water and write down your observations.Qualitative Observations: Since water is denser than the balloon the ballon rises and pushes up on your hand.
- Crumple up half a piece of paper.
- Light the paper on fire from the bottom and place it in the jar.
- Put the balloon on top of the jar so the mouth is sealed.
- Wait until the flame goes out.
- Grab and gently pick up the balloon.