Last week, my son (who is in Grade Primary) had a "Scientist" visit his classroom. He was fascinated, and since then, he has been asking to do a science experiment at home.
Because the other two boys (3 and 22 months) were involved, we decided to keep it simple. I explained that we were going to put vinegar in a bottle and add some baking soda, and when they mixed together, they were going to create gas/air. I asked them what they thought would happen. Then, we did the experiment.
- a plastic bottle
- baking soda
- a balloon
- funnel (to fill the balloon with baking soda)
What we did:
- We poured about 1 1/4 cups of vinegar into the bottle.
- We filled the balloon (about 3/4 full) with baking soda.
- We attached the balloon to the top of the bottle -- making sure there was a tight seal.
4. We carefully dumped the baking soda into the bottle and watched as the balloon filled with air.
Fun, eh? I thought it was a great, simple lesson on "Cause and Effect", and the boys LOVED it.
Gina Bell (aka East Coast Mommy)
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