Yep, we did the experiments, and they were fun and tasty. The first was a fizz bomb one and totally captured the kids as we talked about acids and bases and reactions. We also covered oxygen, carbon dioxide, gases, odorless and not, i.e. farts.
F A R T S !
We basically mixed baking soda in water and added citric acid, instant fizz flare up. Then we doubled the recipe and asked what they thought would happen.
Yep, it was bigger!
Next we talked a little about how science happens all the time, every where around us. How it's also in cooking. They were a little concerned about eating science. They were pretty certain it was indeed poisonous.
We made pancakes with out baking powder and soda and we asked what they thought would happen. They were sure, collectively that it would taste different, perhaps bad. That omitting the baking powder altered taste. So they watched as we cooked 5 flat, heavy pancakes. Next, we added the correct amounts of powder/ soda, and poured 5 more into the pan. This time they fluffed up and rose nice and high. Also, there were little bubble holes in which air was escaping. They noticed all this pretty quickly.
On to the taste test! They said the first batch was flat and heavy, and the second was fluffy and "normal"
They could see how the powder made the food airy and light, just as air was escaping from the fizz experiment.
It was fun and engaging, and filling. And it had Bananas!
Mmmm! Banana pancakes. Hmm, I seem to know a song about Banana pancakes...