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Diffusion

Diffusion. Copy the sentences you think are true: When a substance is heated up its particles get more energy When things heat up they get less particles Energy causes the particles to vibrate more Particles increase in size when they are hot which is why things expand when hot

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Diffusion

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  1. Diffusion Copy the sentences you think are true: When a substance is heated up its particles get more energy When things heat up they get less particles Energy causes the particles to vibrate more Particles increase in size when they are hot which is why things expand when hot The particles spread out more when they are hot which is why things expand when hot

  2. By the end of this lesson you will be able to: Explain how smell travels. Use evidence to support a scientific theory.

  3. The Problem: Smelly cheese factory annoying the local people!! What do you think a scientist could do to help solve this problem?

  4. How do smells travel?? Is it Dr Brown’s theory?

  5. Or Professor Jones’ Theory?

  6. Which theory is right? Explain how smell travels in your own words What advice would you give the factory owner and the people of Moansville to help solve their problem?

  7. Can you…….. Explain how smell travels. Use evidence to support a scientific theory.

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