Today we introduced to the children about chemical changes. We talked about what a chemical was and the indicators that a chemical change has occurred.
What is a chemical?
Sienna: A chemical is when you have a hole in your tooth
Jake: Its a thing that you clean things up with, cleaning tools
Mary: A chemical is when you have problems
Shirley: A chemical is when you can’t put something in your mouth because its bad
Kelly: Chemical is what kids aren’t allowed to touch but adults are
Winnie: It can be a kind of gel or expired things
Sampann: A chemical is a spray
Dimi: A chemical is when you wash dishes
Mackie: Chemicals is hair spray
6 Indicators of a Chemical Change:
- Burning or Fire
- Temperature change without heating or cooling
- Colour Change
- Bubble or Fizzes
The children recorded this in their black books in preparation for a science experiment we will be doing on Friday afternoon where they will watch the chemical reaction that takes place when we add bicarb and vinegar together.