Sink or Float?

Will your toy sink or float? This experiment is fun for all ages.

  1. Ages: 3 - 8

  2. <30 minutes

  3. A little messy

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Materials you'll need

Step-by-step tutorial

  • Step 1

    We gathered small toys and objects that we wanted to experiment with. Will they sink or float? Drop one object in the bowl of water at a time.

    Photo reference of how to complete step 1

  • Step 2

    After you drop it in to find out if it sinks or floats, take it out and put it in the right pile. We used two containers to sort the items.

    Photo reference of how to complete step 2

  • Step 3

    Half way through the experiment, we started making predictions/guesses about whether we thought it would sink or float before we put it in the bowl. So fun!

    Photo reference of how to complete step 3

  • Final result!

    Right when we got done, he wanted to do it again. We used some of the same objects and hunted for new ones to try as well. I liked using the different containers to sort the objects. Next time I will put a towel on the floor underneath the bowl of water.

    Photo reference of how to complete step 4

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