Still+water

Explain what pure water is. Describe how to distil water. Explain why distillation produces pure water. Recall some uses of distillation.
 * Objectives (what you will learn this lesson)**


 * Starter**
 * Key term quiz / homework review


 * Activities**
 * 1) Watch the demonstration of how we get pure water from inky water (you can review this using the video below too)
 * 2) Complete the [|worksheet on distillation] - label the equipment and explain what is going on in each piece of apparatus. You may find reviewing your textbook helpful.
 * 3) Answer Q1,4, 6 from p72-3 of Exploring Science 8
 * 4) Now you've learnt about distillation look at [|the solar pump] which produces clean water at a low cost. Work through the questions on the sheet.
 * 5) Extension: find out about [|fractional distillation] and complete the worksheet.

How does distillation work? Learn by watching this flash video on getting the ink out of inky water. media type="file" key="ES8_Ee072_11vvv.flv" width="360" height="270"
 * Videos**


 * Summary**
 * Review completed classwork / key term quiz
 * (or update your target sheet to help your revision)


 * Homework**
 * Review the [|different methods we have of separation] by completing the table. Print it off and stick it into your book when done.
 * (and/or revise for the end of unit test)