Physical And Chemical Change Flashcards
1
Q
When does a physical change occur?
A
No new suvstance has been fromed only changed it’s shape, size, weight or form of matter
2
Q
When is a chemical change occur?
A
A change that makes a new substance
3
Q
5 ways to know it is a chemical change
A
- Change in temperature 2. Precipitation 3. Fizzing/bubbles 4. Light emitted 5. Colour change
4
Q
Examples of chemical changes
A
Burning, rotting rusting or cooking
5
Q
Examples of physical changes
A
Boiling, melting, freezing and shredding
6
Q
Can chemical changes be reversed?
A
No, not usually
