Cultivate Wonder

Exploring Science with Children

Sink or Float

Will it sink or will it float?  This was the question that we asked during our Wonderworks program this week.

We opened our program with the picture book Who Sank the Boat?, by Pamela Allen.  In this story, which continually asks the listener, “Do you know who sank the boat?,” a group of animal friends all take turns boarding a row boat until it is finally so heavy that it sinks.  Which of the friends finally sank the boat?  Our storytime participants all had a fun time guessing until the very end.

who sank the boat

After our picture book, we all pretended to board our own row boats and sang Row, Row, Row Your Boat, adding a variety of different verses.

SongRow, Row, Row Your Boat

Row, row, row your boat

Gently down the stream

Merrily, merrily, merrily, merrily

Life is but a dream.

Bump, bump, bump your boat….

Sway, sway, sway your boat…

Row, Row, Row your boat underneath the steam

Haha I fooled you

I’m a submarine!

For our non-fiction book, we used the book Will It Float or Sink?, by Melissa Stewart.  The text of this  book discusses many different objects that will sink or float in water and why this is so.  As we read, we demonstrated to our storytime participants how each object mentioned in the book either floated or sank in water, using a clear plastic tub.



After our demonstration, it was time for the children to discover for themselves which objects would sink and which would float. We let them test out numerous items in our plastic tubs of water.

In addition to testing out which objects would sink or float in water, the children were given sheets of aluminum foil which they could use to fashion into small boats to float on the water.  They could then experiment to see how many pennies it would take to sink their boats.  Some of the children tried floating other items in their boats in addition to the pennies.

Our strongest boat held over 50 pennies!

sink or float

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