Tracks+and+trains

8J On the move

Describe how pressure depends on force and area. Recall some ways of reducing and increasing pressure. Describe some applications of increasing the pressure. Describe some applications of decreasing the pressure.
 * Objectives (what you will learn this lesson)**

Review homework / key term quiz
 * Starter**

> media type="file" key="ES8_Jb136_12vco.flv" > a. Record your weight (in Newtons) > b. Record the area under one foot > c. Record the area under both feet > d. Calculate the pressure for one foot and both feet (show your workings) > e. Write a sentence to explain your findings
 * Activities**
 * 1) Learn about tracks and trains
 * 1) Discuss [|what pressure is, how it is calculated and what units it is measured in]
 * 2) Measure the pressure you exert standing on a single foot and on both feet (you will need squared paper and a balance to measure your weight in Newtons). If you don't want to measure your weight and pressure work with a partner who doesn't mind sharing their measurements with you.
 * 1) Read pages 136-137 of Exploring Science 8. Now answer all the questions.
 * 2) Extension: Read [|A winter walk] and answer the questions

Review completed classwork / key term quiz
 * Summary**

Complete the gapfill on [|Tracks and trains]. If you can't print-off your work then simply copy the completed the gapfill into your book
 * Homework**