S3w4 Wednesday Bellringer
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Last updated 3 months ago
5 questions
8
Classify each of the following as chemical and physical change
Classify each of the following as chemical and physical change
- Paper burns
- Food digest
- ice melts
- silver tarnish
- glass breaks
- baking bread
- water evaporates
- dead leaves decaying
- Physical Change
- Chemical Change
1
Imagine that you break a a glass cup. Has a new substance been formed?
Imagine that you break a a glass cup. Has a new substance been formed?
1
Breaking a glass cup is a ......
Breaking a glass cup is a ......
1
Is NaCl (table salt) dissolving in water a physical or a chemical change?
Is NaCl (table salt) dissolving in water a physical or a chemical change?
1
You may have been told that a chemical change is something you can't undo, but a physical change is something you can undo. That isn't really true, but it is a decent rule of thumb. The better definition is:
You may have been told that a chemical change is something you can't undo, but a physical change is something you can undo. That isn't really true, but it is a decent rule of thumb. The better definition is: