Google+ Mom to 2 Posh Lil Divas: Water Theme - Preschool Physics: Exploring Sink vs. Float

Wednesday, July 27, 2011

Water Theme - Preschool Physics: Exploring Sink vs. Float

Will an object sink or float? 

It's a fairly common science experiment that helps teach children about weight 
and it was a perfect addition to our water themed fun this week.

What You Need:
plastic see through container that can hold water
objects of varying weights
optional: (this is best for older preschoolers)
a sheet of paper to keep track of findings
I folded a paper in half and wrote sink in one column and float in the other.

What We Did:

1. I filled a see through plastic container with water

2. We gathered household objects and toys of varying weights

3. I let the Lil Divas take turns picking an item to put into the water.

4. Each had the opportunity to hold the item and predict if it would sink or float.

5. I wrote their predictions on the chart and then 
I let them place it into the water to test their predictions

They were so excited when they were correct!

The one that interested them (& stumped them) the most
was our small Dora & Diego figurines!

They felt like they were relatively the same weight.
Yet, Dora floated along the top & Diego sunk!

The Lil Divas were so curious. 
They kept taking them out & putting them back into the water over and over again. 
It was so cute to see them trying to resolve it.


Have you done any fun experiments using water with your preschooler?



  1. I have tried this experiment with my little guy, but he was a bit too little to get the prediction part of it at the time. It still was quite fun to see what happened to each object!

  2. They look like they're having a ball! I guess anything that includes water is bound to be a hit!

    (love the clothes hangers)

    Thanks for joining the Tuesday Train!

  3. Oooh nice one. Mine love playing with water anyway, so great to explore a little more...

    Thanks AGAIN for joining Kids Get Crafty!


  4. This counts as an entry in the Summer Reading Challenge. Thank you for linking to Read.Explore.Learn.

    I need to do this with JDaniel.

  5. My kids love to sink things in the sink :)


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