We had a busy week in class doing lots of experiments for Science Week. We were very excited to see what happened in each one.Here are some of the experiments we did.
How water moves through capillary motion
In this experiment we used 3 glasses filled with different coloured water. We folded up 2 pieces of kitchen paper and connected the 3 glasses. It was interesting watching as the water moved through the kitchen paper making a rainbow effect.
For our next experiment we needed two glasses, water, 7up and some raisins. We put water into one glass and 7up into the other,then dropped the raisins in. The raisin sank to the bottom in the water glass, while in the 7up glass we had great fun watching the raisin dancing around.
Making a rain cloud
We filled a bowl with water then covered it with shaving foam. Using a dropper we put some blue coloured water into the cloud. When the cloud was full the blue water came through it just like rain.
We filled 4 containers with different liquid. One container had oil, one had water, one had vinegar and the last container had salt water. We put a jelly in each and watched what happened.
When we examined the jellies the next day we noticed that the jellies in the water, saltwater and vinegar all changed while the one in oil stayed the same.