2.1 - Definition
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Practice Questions
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What is a physical change?
💡 Hint: Think about melting ice.
Give one example of a chemical change.
💡 Hint: Consider changes you can't reverse easily.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What characterizes a physical change?
💡 Hint: Think about ice turning into water.
True or False: Chemical changes can be easily reversed.
💡 Hint: Consider burning objects.
1 more question available
Challenge Problems
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Analyze the process of making toast. Identify the physical and chemical changes involved.
💡 Hint: 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?
💡 Hint: Consider barriers that inhibit reactions.
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