Matter Experiments

We are learning about Matter during Inquiry. We have done 2 cool experiments so far.

Mixing Solid and Liquid

Students experimented with adding drops of liquid (vinegar) to solids (flour, sugar, salt, baking soda). They used a pipette (dropper) to drop a little liquid at a time. We took time to observe and record what happened.  The most exciting step was watching the gas bubbles created when the vinegar was added to the baking soda.

    

Balloon Blow-Up

Our next experiment was to see if we could harness the gas created by mixing vinegar and baking soda and use it to inflate a balloon.  It worked! We tied off the balloon and noticed that the gas was very dense because the balloon dropped quickly to the floor compared to a balloon filled with air. We repeated the experiment a second time using more baking soda and inflated the second balloon slightly bigger!

 Before: The vinegar is in the bottle, the baking soda is dangling in the balloon.
 After: When we tilted the balloon up the baking soda fell into the vinegar and a gas was created that blew up the balloon.
 For our second try we put more baking soda in the balloon.
 The balloon inflated even more!

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