Question

Extra points!

Classify each of the following as a physical change or a chemical change.

grinding glass:

rusting of iron:

burning a candle:

sanding wood:

Answer 1

Answer:

1A

2B

3B

4A

Explanation:

Answer 2

Grinding a glass: Physical Change
Rusting of Iron: Chemical Change
Burning a candle: Chemical Change
Sanding a wood: Physical Change