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4 cards from this section. Quick, good the night before a test.
What is a physical change?
Think about melting ice.
Give one example of a chemical change.
Consider changes you can't reverse easily.
What characterizes a physical change?
Think about ice turning into water.
True or False: Chemical changes can be easily reversed.
Consider burning objects.
Analyze the process of making toast. Identify the physical and chemical changes involved.
Think about what happens to the bread and its appearance.
Discuss the implications of rusting in terms of chemical changes. How might prevention methods work?
Consider barriers that inhibit reactions.
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