In+Theory+...

7G What a waste

Explain what evidence is and identify some examples. Describe what a theory is. Explain how scientists test theories. List some of the things that a theory about solids, liquids and gases needs to explain.
 * Objectives (what you will learn this lesson) **


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

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 * Activities **
 * 1) What are predictions, observations and theories? Try to work it out for yourself below
 * 1) Now discuss your findings in groups or as a class
 * 2) Use your skills to complete the worksheet on [|Predictions, theories and evidence]
 * 3) What is diffusion? What the video to see potassium permanganate diffusing through water and discuss what you think is happening.
 * 1) [|Investigate dilution] and answer the considering your results questions.
 * 2) Why does the can explode? Discuss your predictions **before** watching the animation.
 * 1) Extension: Read about Einstein and answer questions on [|Sock theories].


 * Summary **
 * Review completed classwork / key term quiz
 * Discuss what things a theory about solids, liquids and gases should explain. Your homework will give you the chance to see if the scientists who developed particle theory agree with you.

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