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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is rusting?
π‘ Hint: Think about what happens to iron when left outside.
Question 2
Easy
List one method to prevent rusting.
π‘ Hint: What do we use to cover something?
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What type of change is rusting?
π‘ Hint: Rust is a new product of the process.
Question 2
Is combustion a physical or chemical change?
π‘ Hint: Think about what happens when you burn wood.
Solve 2 more questions and get performance evaluation
Push your limits with challenges.
Question 1
A metal object was left outside and gradually developed a brown coating. Explain the chemical processes involved, why they occurred, and how to prevent this from happening.
π‘ Hint: Identify the substances reacting and think of prevention methods.
Question 2
Describe a scenario where crystallization leads to the formation of a chemical substance from a solution. Explain the significance of this process.
π‘ Hint: Consider what happens when liquids are removed from a solution.
Challenge and get performance evaluation