Today we learned about buoyancy by investigating floating and sinking.  First we made a table that included the different things we would be testing.

We then predicted whether each item would float or sink before putting them to the test.

We were surprised by some of the results.  Did you know that an orange with the skin on floats however it sinks when the skin is removed?   This is because the skin is porous and has lots of tiny air pockets which help keep it afloat.

Next term we’re looking forward to applying our knowledge by designing and creating a raft… watch this space!