Year 9 Table of Contents

Unit 9A Inheritance and selection
- 9A1 Variation
- 9A2 Passing on the genes
- 9A3 Breeding animals
- 9A4 Breeding plants
- 9A5 Inherited conditions
Unit 9B Fit and healthy
- 9B1 Skeleton
- 9B2 Muscles
- 9B3 Eating well
- 9B4 Unhealthy hearts
- 9B5 Smoking
- 9B6 Alcohol and drugs
Unit 9C Plants and photosynthesis
- 9C1 Leaves
- 9C2 Photosynthesis
- 9C3 Biomass
- 9C4 Roots
- 9C5 Why are plants important?
Unit 9D Plants for food
- 9D1 Plants and food
- 9D2 Fertilisers
- 9D3 Growing more crops
- 9D4 Pests
- 9D5 Intensive care for plants
Unit 9E Reactions of metals and their compounds
- 9E1 Why are metals useful?
- 9E2 Metals plus acids
- 9E3 Fizzing carbonates
- 9E4 Neutralisation
- 9E5 Preparing salts
Unit 9F Patterns of reactivity
- 9F1 Why do metals tarnish?
- 9F2 Comparing reactivity
- 9F3 The reactivity series
- 9F4 Metals in competition
- 9F5 Uses and sources of metals
Unit 9G Environmental chemistry
- 9G1 Soils and weathering
- 9G2 Acid rain
- 9G3 Monitoring pollution
- 9G4 Global warming
Unit 9H Using chemistry
- 9H1 Burning fuels
- 9H2 Energy from reactions
- 9H3 What happens to the mass?
- 9H4 More about reactions
Unit 9I Energy and electricity
- 9I1 Storing and using energy
- 9I2 Battery power
- 9I3 Generating electricity
- 9I4 Measuring voltagesg
- 9I5 Voltage and energy
Unit 9J Gravity and space
- 9J1 Exploring the Moon
- 9J2 A trip into space
- 9J3 Exploring the Solar System
- 9J4 Staying in orbit
- 9J5 Satellites at work
Unit 9K Speeding up
- 9K1 Measuring speed
- 9K2 Speeding up
- 9K3 Changing speed, changing direction
- 9K4 It’s a drag
- 9K5 Going up, coming down
Unit 9L Pressure and moments
- 9L1 High pressure, low pressure
- 9L2 Stiletto sums
- 9L3 Hydraulics
- 9L4 Levers everywhere
- 9L5 Getting balanced
- 9L6 A matter of moments