1.1 - Leaves, stems, and roots
1.2 - Questions, evidence and explanations
2.1 - The human skeleton
2.2 - Muscles and movement
2.3 - Organ systems
2.4 - The circulatory system
2.5 - Studying the human body
2.6 - Extending lives
3.1 - The characteristics of living things
3.2 - Microbes
3.3 - Louis Pasteur
3.4 - Testing predictions
3.5 - Useful micro-organisms
3.6 - Planning investigations
3.7 - Harmful micro-organisms
3.8 - Plant and animal cells
3.9 - Specialised cells
3.10 - Nerves
3.11 - Tissues and organs
4.1 - Habitats
4.2 - Food chains
4.3 - Feeding ourselves
4.4 - Changing the planet
4.5 - Preventing extinction
4.6 - Obtaining energy
4.7 - Growing fuels
5.1 - Variation
5.2 - Causes of variation
5.3 - Species
5.4 - Classification
5.5 - Vertebrates
5.6 - Classification of plants
6.1 - Why we need plants
6.2 - Asking scientific questions
6.3 - Water and minerals
7.1 - Food
7.2 - Managing variables
7.3 - A balanced diet
7.4 - Deficiencies
7.5 - Choosing foods
8.1 - The digestive system
8.2 - Enzymes
8.3 - Using enzymes
9.1 - Blood
9.2 - Anaemia
9.3 - The circulatory system
9.4 - Identifying trends
9.5 - Diet and fitness
10.1 - Lungs
10.2 - Respiration and gas exchange
10.3 - Anaerobic respiration
10.4 - Smoking and lung damage
10.5 - Communicating findings
12.1 - Reproduction
12.2 - Fetal development
12.3 - Twins
12.4 - Adolescence
12.1 - Drugs
12.2 - Disease
12.3 - Defence against disease
12.4 - Boosting your immunity
13.1 - Photosynthesis
13.2 - Preliminary tests
13.3 - Plant growth
13.4 - Phytoextraction
13.5 - Flowers
13.6 - Seed dispersal
14.1 - Adaptation
14.2 - Extreme adaptations
14.3 - Survival
14.4 - Sampling techniques
14.5 - Studying the natural world
15.1 - Food webs
15.2 - Energy flow
15.3 - Decomposers
15.4 - Changing populations
15.5 - Facing extinction
15.6 - Maintaining biodiversity
16.1 - Air pollution
16.2 - How scientists work
16.3 - Water pollution
16.4 - Saving rainforests
17.1 - Using keys
17.2 - What makes us different?
17.3 - Chromosomes
17.4 - Investigation inheritance
17.5 - Selective breeding
17.6 - Developing a theory
17.7 - Darwin's theory of evolution
17.8 - Moving genes
17.9 - Using genes