Science

Y8 Science

Key Stage 3

Year 8

Digestion and nutrition

This lesson explores the components of a healthy diet and using nutritional labels to determine nutrient content in foods.

Healthy diet (Part 1)

This lesson looks at what factors affect our daily calorie intake and calculating energy requirements for different activities.

Healthy diet (Part 2)

This lesson describes the effects of a poor diet on the body. We will explore the impact of getting too much or too little of a particular nutrient. This lesson contains images of disease and malnutrition.

Unhealthy diet

This lesson looks at what the body needs energy for and how our bodies release the energy from our foods.

Energy release

This lesson explores what we mean by carbohydrates and how to chemically test for the presence of these in foods.

Carbohydrates

This lesson explores what proteins and fats are and how to chemically test for the presence of these in foods.

Protein and Fats

This lesson reviews our learning of the topic so far.

Review (Part 1)

This lesson looks at how our bodies are equipped to digest the food that we eat and why it is necessary. We are going to take a journey through the digestive system, looking at the role of each of the different organs.

The digestive system

This lesson takes a closer look at how the small intestine is adapted specifically for the absorption of different nutrients from our food.

Adaptations of the small intestine

This lesson describes the action of enzymes in the digestive system. We will observe a "model gut" experiment and evaluate this model.

Enzymes

This lesson describes how a change in temperature affects the activity of enzymes.

Effect of temperature on enzymes

This lesson explores the life and work of revolutionary microbiologist Rebecca Lancefield and how she dedicated her 60-year scientific career to understanding Streptococcus, and other bacteria, which paved the way for modern antibiotics.

Case study of Rebecca Lancefield

This lesson reviews the digestive system, adaptations of the small intestine, the role of enzymes in digestion and how temperature affects enzyme activity.

Key Stage 3, Science, Digestion and nutrition

Unit Quiz