Practice Physical and Chemical Changes - 2.3 | 2. Is Matter Around Us Pure? | CBSE 9 Science
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Physical and Chemical Changes

2.3 - Physical and Chemical Changes

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What type of change occurs when ice melts?

💡 Hint: Think about if the ice turns into something new.

Question 2 Easy

Is rusting of iron a physical or chemical change?

💡 Hint: Consider if a new substance is formed.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following is a physical change?

Burning wood
Melting ice
Rusting iron

💡 Hint: Think of whether the composition is altered.

Question 2

True or False: All chemical changes are irreversible.

True
False

💡 Hint: Consider if reactions can go back to their original state.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A piece of metal rusts, forming iron oxide. Classify this change and explain why.

💡 Hint: Think about whether the original substance changes chemically.

Challenge 2 Hard

Describe a scenario where both physical and chemical changes occur. Explain the processes involved.

💡 Hint: Identify the different changes happening during the cooking process.

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Reference links

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