I would explore the science behind Fizzing with the class!
This topic is familiar to the children and they will all be interested in chatting about fizzy drinks! This familiarity can be used to explore some scientific concepts. The fizz or bubbles in drink are caused by carbon dioxide. I would pose the questions: Can you taste it? Can you see it? Can you feel it?
We would also try the Dancing Raisins experiment. The Science Part at the end would again be very important to discuss and I would have to ensure that they all glean some scientific facts form the fun!
The Balloon Blow up Demonstration is another one that caught my attention! This would show children how carbon dioxide can be created and then used to blow up a balloon. The Science Part using Vinegar would yet again be really important to discuss. I think that is why I can still use these ideas with the third class have incoming and some of these activities are totally usable at the middle and senior end of school.