That+stinks

7G What a waste

Describe how smells and colours can move from one place to another. Explain what a prediction is. Compare how quickly things spread out in gases and liquids. Use the particle theory to explain how smells and colours can move from one place to another.
 * Objectives (what you will learn this lesson) **


 * Starter **
 * Review completed work
 * Key term quiz

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 * Activities **
 * 1) What is a prediction? Discuss diffusion and make predictions about what will happen in each case below
 * 1) Roleplay diffusion each member of the class will play a particle
 * 2) Look at difussion in the tea. Can you explain what is happening at the different temperatures and why?
 * 1) Investigate diffusion in liquids. [|This worksheet] can provide ideas or you may want to plan your own investigation.
 * 2) Complete 1a, 2 (Exploring Science 7, p99)
 * 3) Extension: What determines which direction gases particles move in? Read and answer questions on [|Random motion] to find out.

Review completed classwork / key term quiz With your textbook closed quickly write down the answers to the [|That stinks! summary questions]. Self-mark your work to see how much you got right.
 * Summary **

Complete the gapfill on [|That stinks!]. Either copy and complete in your exercise book or print it off when you are done.
 * Homework **