Pumpkin-Cano Science Activity
Easy Sensory Science
Hands-On Learning Fun!
First , you need a smallish pumpkin. I bought this baking pumpkin for $2 at Trader Joes when I was shopping. All the way home Liam talked about making a volcano because he remembered the one we made when we had a dinosaur week this past summer. Obviously the bigger the pumpkin the more baking soda and vinegar you will need and the bigger the mess you will make! He could hardly wait while we put the groceries away and set up the table for the science activity!
Second, you will need to hollow it out! This is a fun activity on its own and great for sensory play. Save the insides for some additional sensory play if your child likes messy and squishy play. Mine doesn't of course and didn't want to use his hands even, but I planned to make a sensory bag with the gooey stuff so he could examine it more later! I loosened the insides since I knew he wouldn't touch it and gave him different kinds of spoons to work on scooping out the seeds and stuff. It was hard work but good for hand muscles.
Third, find a container to put in the pumpkin or use the pumpkin itself. We couldn't decide what to do since we never tried this before, so we did it three different ways. We used a cup, a small soda bottle and the pumpkin itself to test out what would happen with each. We talked a bit about why the eruption happens when we combine the baking soda and vinegar but kept it simple and talked about reactions and then showed him a reaction when we added the vinegar! We also explained that another type of reaction is the surprise he felt when he saw the fizzing foam come out!
Here's the mixture I made to fill the cup, bottle and pumpkin:
1. warm water mixed with food coloring filled to about 3/4 full
2. 4-5 drops of dish soap
When you are ready to make the eruption
3. A few tablespoons of baking soda: then get ready to add....
4. 1/4 cup of vinegar and watch with delight!
Here are the variations with the soda bottle and just the pumpkin!
This was one of my favorite pictures of our pumpkin-cano! The pumpkin was completely surrounded. This was the perfect science activity for a Saturday evening at home!
We used the whole pumpkin, inside and out for more activities that we will share very soon.
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