Today we explored changes in materials:
- melting chocolate
- cooking cakes
- making jelly
- mixing mentos and coke
- combining bicarbonate of soda and vinegar
- dissolving effervescent tablets in water
We have discussed which changes are reversible and which cannot be reversed. We looked at the processes that caused the changes and whether the materials changed from a solid to a liquid, a solid to a gas or a liquid to a solid.