10 Questions
Which one of the following is an example of a physical change?
Melting of ice
What is an example of a chemical change mentioned in the text?
Rusting of iron
What happens to the size of paper and chalk during Activities 5.1 and 5.2?
They increase in size
What happens to the color of the tip of a hack-saw blade when heated on a gas stove?
It turns red
What is the term used for a change in which a substance undergoes a change in its physical properties?
Physical change
What happens when a magnesium ribbon is burned?
It burns with a brilliant white light.
Which of the following is NOT true about rust?
Rust is a physical change.
What does the arrow in a chemical equation imply?
Becomes
What caution should be taken when looking at a burning magnesium ribbon?
None of the above.
What should not be done at this stage when balancing chemical equations?
Attempt to balance chemical equations.
Quiz: Observing Changes in Materials - Test your knowledge on how materials undergo changes in size and color. Explore the effects of heat on a hack-saw blade and observe the color changes. Learn about the reversibility of these changes and discover how paper and chalk also undergo size changes. Take this quiz to enhance your understanding of material transformations!
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