Super science in Year 5

In science, we have been learning all about materials and changes in  materials. 

We have explored making a solution using salt and water and then attemptong to reverse this process using evaporation. 

This week, we moved on to exploring irreversible changes. The children explored the different ways materials make irreversible changes for example: Mixing, heating, burning. 

We took this opportunity to complete some cooking in class and explored how ingredients for pancakes changes when mixed and then heated. 

We began by looking at all the ingredients in their original form - flour, milk and eggs. We then mixed them together and discovered we had already witnessed an irreversible change - we would not be able to separate the mixture now! Some of the class thought of our previous lesson on evaporation and whether this would work with our mixture. This was a key learning moment for us as we discovered that mixing doesn't ALWAYS result in an irreversible change! 

We then heated the mixture and used our observation enquiry skill to record some key changes. 

'It took about 40 seconds for it to turn from a liquid to a solid.' - Harley 

'It went hard at the edges first and then in the middle next.' - Harry

'There were bubbles in the mixture as it was heated.' - Oliver 

'It changed colour - it went from light to darker.' - Nicola 

This term, the children have demonstrated that they are fantastic scientists and have developed well in their enquiry skills! 

Well done Year 5!