How Does Air Change In Different Temperatures?

 2 Science experiments this afternoon!! With all the water bottles in use for Athletics Day we were able to do this experiment as well! The results were amazing with this one- and this experiment was a lot easier for us to do.

Does Air Change In Different Temperatures?

You need:

2 plastic bottles

2 containers wider than the bottles

2 balloons

2 rubber bands

What to do:

1.      Place 2 deflated balloons over the tops of the 2 bottles. (We used red and blue balloons to help identify temperature)

2.      Use rubber bands to secure the balloons in lace.

3.      Place the balloons in the wide containers.

4.      Fill one container with ice cubes. (For the blue balloon bottle)

5.      Carefully fill the other with hot water (For the red balloon bottle)

6.      What do you observe?

When air gets warm, it expands. That inflates the balloon. Cool air contracts, causing the other bottle to shrink.
In this case, the blue balloon not only contracted, it went all the way inside the bottle!