It was the big day! Test two ingredients plus water since we didn't get any bubbles with just one ingredient and water.
And while lots of groups didn't get bubbles with their combinations of ingredients, we had a few groups that DID! There were bubbles appearing with baking soda + citric acid, baking soda + sugary lemonade mix, and baking soda + sugar-free lemonade mix.
And while lots of groups didn't get bubbles with their combinations of ingredients, we had a few groups that DID! There were bubbles appearing with baking soda + citric acid, baking soda + sugary lemonade mix, and baking soda + sugar-free lemonade mix.
We remembered that both lemonade mixes were mixtures, so students asked to see their ingredients' lists!
Something clicked! Both of the mixes shared citric acid in the ingredients, so that seemed to be the winning combination to make the mysterious bubbles we've been trying to figure out so much about!
So if citric acid + baking soda + water = a gas, and this gas is obviously new since every substance's state of matter is a property, what on earth is this gas?!?!
We brainstormed gases we knew and came up with a bunch. But how can we test this gas and figure out what it really is?!?!
So if citric acid + baking soda + water = a gas, and this gas is obviously new since every substance's state of matter is a property, what on earth is this gas?!?!
We brainstormed gases we knew and came up with a bunch. But how can we test this gas and figure out what it really is?!?!