Thursday, 6 February 2014

Floating and Sinking with Year 3

Our new school year has begun.
Being the summer term it's great to make the most of the sunshine, warm weather and our school pool! This week both year three classes have begun exploring and learning about floating and sinking.  We started our lesson by watching the story 'Who Sank the Boat?' by Pamela Allen and this led to some great discussion about what is floating and what is sinking?  Will the boat stay floating if it is sitting down very low in the water?  Why did the boat sink when the mouse got in? What does sinking mean?  What makes something float?  What makes something sink?

Who Sank The Boat from Jeff Keith on Vimeo.

The classes shared their ideas about things they know that float and things that sink.  We made some excellent predictions about the everyday objects I had gathered.  Then we went outside and conducted our own investigation into floating and sinking.  It was great to see some of the boys surprised at what floated and we then experimented with the way we dropped the object into the water, on its side, upside down etc.  The boys were surprised to see that this sometimes made a difference!

After our experimenting we grouped the  objects according to whether or not they floated or sank.  Then we shared our ideas about what the objects in each group had in common.  The boys began to form some good ideas about what makes an object float.
We soon ran out of time.  Next week we're going to learn about density and up thrust and begin to make our rubber band powered boats.

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