M loves balloons, and he loves science experiments. I’ve been meaning to do the first experiment below for some time now, and it finally happened this week.
The idea for the second experiment came from Fun with Mama.
EXPERIMENT # 1:
M poured vinegar into a glass bud vase and we scooped some baking soda into our balloon.
I attached the balloon to the end of the vase and then M lifted it up so the baking soda would fall into the vinegar, to create carbon dioxide gas.
The vinegar and baking soda mixed together, began to fizz up and then the balloon started to expand at a very rapid rate. At that point both M and I raced into the living room, as we are both deathly afraid of loud noises and were sure this thing was going to burst. I had the sudden sickening realization that perhaps a glass vase was not the wisest choice for our experiment, since it would most likely be rocketed into a wall and smashed to bits.
EXPERIMENT # 2:
In this experiment we learned about molecules, tiny little invisible things that make up the air (and everything else, but we really didn’t go into that). When they are warm they move around more and take up more space. When they are cold they huddle closer together and take up less space.
I placed our balloon around the opening of a water bottle (plastic this time!). I also filled up a second container with very hot water.
Mommy really knew what she was talking about with the whole crazy “invisible molecules” thing. ;)
For the record, M loved the second experiment and spent a good 20 minutes doing it over and over again. First the cold, then the hot, then the cold, then the hot…
Head over to Science Sunday for more science activities!
Have a beautiful day! :)