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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a chemical change?
💡 Hint: Think about what happens when you burn something.
Question 2
Easy
Give an example of a physical change.
💡 Hint: What happens to ice when it gets warm?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which of these is an indicator of a chemical change?
- Color change
- Size change
- State change
💡 Hint: Think about how fruit changes color as it ripens.
Question 2
True or False: All chemical changes are reversible.
- True
- False
💡 Hint: Consider a baked cake; can you turn it back into batter?
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Explain the process of rusting and how it might be a concern for structures over time.
💡 Hint: Think about how we see rust on metal railings and cars.
Question 2
Design an experiment to demonstrate a chemical change, detailing expected observations.
💡 Hint: Think about the reaction you've seen in a volcano experiment.
Challenge and get performance evaluation