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Schemes of Work
QCA

Science at key stage 3    (Year 9)

Unit 9A: Inheritance and selection

QCA

Where the unit fits in

The unit builds on ideas introduced in unit 7A 'Cells', unit 7B 'Reproduction' and in unit 7D 'Variation and classification'. This unit provides opportunities to revisit and revise topics met in other units in years 7 and 8. With some pupils, teachers may wish to concentrate on some of the new topics, extending activities, and with others to spend more time on revision of previous work.

The unit is closely related to unit 9D 'Plants for food', which considers environmental influences on food production.

There are opportunities for citizenship, PSHE and sex education to be linked to this unit.

The historical impact of scientific discovery is covered in unit 20 'Twentieth-century medicine' and unit 21 'Scientific discoveries' in the history scheme of work.

This unit lays the foundation for work in key stage 4 on inheritance and genetics.


Sections in this unit

This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. What characteristics can be inherited?
2. Why are offspring of the same parents similar but not identical?
3. a. How do differences between offspring with the same parents compare with differences between offspring of different parents?
4. b. How do differences between offspring with the same parents compare with differences between offspring of different parents?
5. How are new breeds of animal produced?
6. Checking progress
7. Why do farmers produce new breeds of animals?
8. a. How are new varieties of plant produced?
9. b. How are new varieties of plant produced?
10. Are varieties produced by selective breeding different from each other?
11. What is a clone?
12. Reviewing work