1.2 - Key Features of Physical Changes
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Practice Questions
Test your understanding with targeted questions
What happens when ice melts?
💡 Hint: Think about the state the ice changes to.
Is cutting paper a physical change or chemical change?
💡 Hint: Consider if a new substance is formed.
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Interactive Quizzes
Quick quizzes to reinforce your learning
Which of the following is a physical change?
💡 Hint: Think about whether a new substance is created.
True or False: Physical changes are always irreversible.
💡 Hint: Recall examples where the original substance can be returned.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Propose an experiment to observe both physical and chemical changes in a single scenario. Describe the changes and their classifications.
💡 Hint: Think about what happens during the process and how energy is involved.
Compare and contrast physical and chemical changes in terms of energy. Provide examples for each.
💡 Hint: Focus on how energy interacts with the substances before and after each change.
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