The book is called Chemistry for Every Kid by Janice VanCleave (you can probably pick up a copy on Amazon, or keep your eyes peeled for a second hand copy like we did) - my kids and I love it!
We've had a string of gorgeous sunny days with little to no breeze. That is perfect weather for backyard science experiments and the kids and I decided to kick the Summer off right with a volcano!
We loosely followed the instructions in the kids chemistry book, but the idea is a simple one, especially if you've ever done any kitchen table science experiments with baking soda and vinegar.
- an empty, clean plastic bottle
- dirt (we borrowed ours from our garden)
- a little bit of water
- a large container to hold your volcano
- baking soda
- red food coloring
- a measuring cup - one with a spout will make it easier to pour
As I mentioned, we tend to just wing it when it comes to following exact measurements and instructions for some of the projects in the book and use the book more for inspiration, as a place to grab an idea to get us started and then we run with it.
(Note: sometimes exact measurements and specific instructions do matter, of course, but not so much for baking soda volcano building.)
First we took our large plastic container and filled it with dirt from the garden and added in a little water. Then, placing our empty plastic bottle in the center, we used our fresh made mud and built up a volcano around the bottle, being careful not to get any dirt inside the bottle.
We added a few scoops of baking soda to the bottle (you might find this easier to do before you build the volcano, depending on the opening size of your bottle). Then we measured about a cup of vinegar and added a few drops of red food coloring to it, mixing it up.
Pour your vinegar into the bottle in the center of your volcano, and then, look out! She's gonna blow!