What's+in+a+solution?

Describe what chromatography is. Describe how to make a chromatogram. Interpret a chromatogram. Recall some uses of chromatography.
 * Objectives (what you will learn this lesson)**


 * Starter**
 * Key term quiz / homework review


 * Activities**
 * 1) What is in black ink? Watch the demonstrations
 * 2) Practical: Which pen wrote the note? Make a chromatogram to find out. Once it's dry stick the chromatogram into your exercise book and write a short paragraph below it explaining your investigation and what you found out (start 4 whilst you are waiting for your chromatogram to dry)
 * 3) Now that you've done your own chromatogram work through the [|Chromatography worksheet]
 * 4) Extension: Complete the worksheet [|Forensic evidence]


 * Summary**
 * Review completed classwork / key term quiz
 * Complete [|what's in a solution] in groups

Learn about chromatography, watch this video using chromatography to identify pure orange juice. media type="file" key="ES8_Ed070_11vvv.flv" width="360" height="270"
 * Videos**

Make your own poster of real life uses of chromatograms using [|the worksheet and guidelines] to help you. Print it off once you are finished.
 * Homework**