We sat in the hall with the Year 4's and watched as Alan created some amazing bubbles. Then Emily explained mixtures to us by saying how we take different items - like when we make a cake - and mix them together.
First she showed us how to create bubble mixture. Then she mixed blue food colouring with water and asked for predictions. Next she added vegetable oil to the blue water and asked whether we thought it would stay blue, turn green, turn yellow or do something different. Many students predicted that it would turn green, but what actually happened was the two separated and formed two different layers in the bottle. Finally she mixed baking soda and vinegar and talked about reactions.
Alan then did some more experiments with bubbles - this time talking about and filling the bubbles with different gases and explaining about density.
The students really enjoyed the session and there was lots of great thinking occurring as we made our predictions and observed the reactions.
You can find out more about Science in a Van here - Science in a Van Website
No comments:
Post a Comment