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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens when you burn a candle?
💡 Hint: Consider what happens to the wax.
Question 2
Easy
What is a physical change? Give one example.
💡 Hint: Think of something that can revert back to its original state.
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
What is a defining characteristic of a chemical change?
- No new substances are formed
- New substances are created
- The change is always reversible
💡 Hint: Think about changes in identity.
Question 2
Is melting ice a physical or chemical change?
- True
- False
💡 Hint: Consider if anything new is created.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have three substances: ice, bread, and iron. Identify the type of change for each when subjected to heat, and explain your reasoning.
💡 Hint: Consider what happens when heat is applied.
Question 2
Create a flow chart that differentiates physical changes from chemical changes, using examples and key characteristics.
💡 Hint: What are main distinctions between the two types of changes?
Challenge and get performance evaluation