Wednesday 29 February 2012

Science Monday

On Monday this week we concentrated on science. George 1st and George 2nd were both given experiments to do.

George 1st's experiment was how to make a paperclip float. The following description is in his own words.

"First of all, the paperclip sunk. But then we tried putting a piece of tissue underneath the paperclip and the paperclip floated once the paper had sunk. This happens because of water surface tension. It is how water boatmen skim across the top of the water. I tried sprinkling baby powder on the water. I didn't notice a difference. When I put washing up liquid in, the paperclip sunk because it was attracting the paperclip to itself. I also tried different liquids. The bleach was thicker than the water and the paperclip floated. I also tried oil. The paper soaked up all the oil but stayed on the surface."

George 2nd's experiment involved putting cut flowers in water with food colouring.

Three bottles of flowers



To one we added green food colouring, to the other black. When we checked today, the one in green has started to develop green stripes.


After this, George 1st decided to make a circuit to light a bulb. He chose wires, batteries and a bulb. He also used selotape and a crocodile clip as a conductor.





After a hard day, this is how George 3rd ended up at dinner time.



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