Scuba Fruit

Get raisins to float with the help of bubbles of carbon dioxide.

Scuba Fruit Experiment

Materials Checklist

Before You Start - Lab Safety

Always remember to wear eye protection during science experiments. Never handle sharp objects, open flames, chemicals, or other dangerous objects without adult permission and supervision.

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Procedure

  1. Scuba Fruit Experiment Step 1
    Step 1

    Fill the glass will seltzer water until it is about 3/4 full.

  2. Scuba Fruit Experiment Step 2
    Step 2

    Drop several raisins into the glass and observe. It might take a few seconds for something to start happening, so be sure to take a close look at how the bubbles of carbonation in the selzter are helping the raisins to float.

  3. Scuba Fruit Experiment Step 3
    Step 3

    If you have them, try dropping in some other light, small objects, such as grains of rice or oats. How do they act? See if you can predict which objects will float and which will sink.

Materials Checklist

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