Mad Science: Mixtures

Time for some experiments!

Here are the materials for the activity.
I used various kinds of glasses that I could find in the kitchen.
I filled some with water and the others with white vinegar. Then, I added a drop of food coloring to make it more appealing to Caleb.
I also put some baking soda in a plastic cup and let him spoon some into the glasses to see what would happen.

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His reaction to seeing bubbles.
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He quickly put spoonfuls of baking soda into the other glasses.
(Note: You might need to refill with vinegar to add more fizz.)
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Of course not all of the liquids produced bubbles. He asked me “why no bubbles?” and kept on adding baking soda to make them appear. I told him to smell the liquids to give him a clue.
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The ones with vinegar smelled bad and were easily identifiable. I asked him to sort the glasses by smell.
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I explained that the liquids that smelled bad made bubbles because they were filled with vinegar and those that didn’t only had water. I kept the explanation short and simple! He’s only two years old 🙂

I let him mix the liquids when he was done to see what color he could come up with.
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Caleb: It’s black. I made black.
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Caleb smelled his hands when he was finished.
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Hahahaha!
Time to wash hands!

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