Science with Robyn

A special lady called Robyn came into our classroom a couple of weeks ago and did some science activities with Room 4.

Robyn asked us to get into groups of three and figure out what we thought was inside two mysterious looking bottles.
Bottles were handed for us to examine out and we all noticed that one bottle had bubbles and the other had none.



When our time was up, we were asked to guess what was inside each bottle. There were wild guesses from everyone, then we clicked after feeling and shaking the bottles that it was lemonade and water.


Our next task was to get a cup of water and a cup of lemonade then drop a couple of raisins both cups and see whether they would float or sink.
My group dropped two raisins into the cup of water and noticed they sunk to the bottom straight away.


When we tried it with the fizzy lemonade, we hoped they would float and was surprised because they floated to the surface after a little while.
Robyn asked us to think why we thought the raisins sunk to the bottom in water and floated in lemonade. We think this might have something to do with the bubbles in the lemonade getting trapped in the wrinkles of the raisins, causing the bubbles to lift the raisins to the top.
Room 4 had fun learning about science with Robyn!