What is Heating?
When you raise the temperature of something
Tearing pieces of paper. R or Non-R change?
Reversible
Breaking of Glass. R or Non-R?
Reversible
When you heat a stick of butter, what state of matter does it change to?
It changes from Solid to Liquid
Give examples of Non - Reversible Changes
Popcorn popping, cooking eggs, making cupcakes, and lighting something on fire are all common examples
Making an Omellette.
Non - Reversible
Baking a cake
Non- Reversible
What are examples of reversible changes?
Melting butter then cooling it and melting an ice cube then re-freezing it in the freezer are both common examples.
How can you tell if a change is Reversible or not?
If the object that changed can go back to its original form, then it is reversible.
What is Cooling?
Bringing down the temperature of something