Keys and Detection

Work done in this Nuffield 13 - 16 module followed from the B units called ‘Communities and populations’ and ‘Charged particles’. This S unit provided enough material for eight double periods during a single-certificate science course. The teachers’ guide included four worksheets to supplement the students’ booklet.

The main aims of this module were:
1. to encourage students to use different types of keys, in a confident and knowledgeable way, to identify a range of materials and living organisms;
2. to help develop students’ observational and practical skills.

It was hoped that by understanding how keys work, students would be able to construct their own keys where appropriate.

Contents
1. Detective work
2. What animal is this?
3. Looking for carbonates
4. Different sorts of rocks
5. Detecting metals in solution
6. The Moon's phase today
7. Which substance is this fabric made of?
8. Punched cards

• URL: http://stem.org.uk/rx4xp