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Project
Debate in the class — ‘Gases can spread and fill all the available space’. Is this property of gases beneficial or harmful?
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Key Points
Spreading gases can be both helpful and harmful.
Key Points / Good Practices
- Beneficial: the smell of food warns us and helps us enjoy it.
- Beneficial: cooking gas spreads to burn evenly.
- Beneficial: room fresheners and perfumes spread quickly.
- Harmful: a gas leak can spread danger fast.
- Harmful: polluting gases spread through the whole air.
- Conclude that the property is useful but must be handled safely.
A balanced debate shows the spreading of gases is helpful but can be harmful if unsafe.
