To start the day off, we carried out an experiment with two balloons. The first balloon was just blown up, we wanted to find out what would happen if we put a flame underneath...instantly, it burst with a loud BANG! The second part to the experiment was carried out with water in the balloon. This time we held the flame underneath for quite some time! We discovered that the water was absorbing the heat from the flame and therefore it took longer to burst the balloon. Take a look at the video clip below to see what happened.
Our second experiment of the day took us a while to perfect! However, we persevered and made it work. We created a mixture of warm water, vinegar and baking powder. Originally, we mixed up the ingredients in a large zip lock bag...but this was unsuccessful.
We went back to the classroom and had another think about the containers that we could try. We decided upon a plastic cup covered with cling film and a water bottle.
This is what happened...
This came close to what we were expecting to happen...but it didn't raise off of the floor. The cling film was too weak to gather enough pressure for an explosion to happen. So we tried the water bottle...
We finally ended up with the result we were hoping to see!
In the afternoon we investigated to see if we could layer the colours of skittles. First, we counted out 12 purple skittles, 10 green, 8 orange, 6 yellow and 4 red. We placed then in glasses and poured hot water on them and stirred them up to ensure all of the sugar coloured coating came off of them.
We then poured the purple skittle juice into a clean glass. Next came the tricky part! Using a syringe, we needed to take the coloured liquid from the green skittles and carefully pour it on top of the purple liquid. We needed to ensure the liquid ran down the side of the glass so that it did not disturb the purple mixture.
We continued our experiment and although it didn't work as well as we had hoped, you can still see some layers of the liquids.
For the final part of the afternoon, we were joined by Mrs Johnson from SAM Science. We carried out 3 different experiments. First of all we began to create the mixture for our ice cream, we had to roll the ball full of ice cubes and salt around for ages! But the result meant that we all got a bowl of ice cream :)
In between mixing up the ice cream, we took it in turns to make our very own cups of jelly worms!
We also experienced flash paper!
Overall, it was a fantastic day full of experiments! A huge thank you to Miss Groves for organising the whole day!
No comments:
Post a Comment