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Series 5: Inheritance, variation and evolution

3. Variation

Why variation happens within one species and the genetic and environmental causes.

• 8 mins

Series 5: Inheritance, variation and evolution

4. Evolution

What evolution is and the four key stages of the process of natural selection.

• 9 mins

Series 5: Inheritance, variation and evolution

5. Evidence for evolution

Dr Alex Lathbridge breaks down the different types of scientific evidence for evolution.

• 10 mins

Series 5: Inheritance, variation and evolution

6. Changing organisms

How selective breeding and genetic engineering happens in a laboratory, pros and cons.

• 11 mins

Series 5: Inheritance, variation and evolution

7. Classification

The Linnean System, the Three-Domain System and the Binomial System.

• 10 mins

Series 6: Ecology

1. Organisation of ecosystems

How food chains are formed and how predators and prey interact.

• 11 mins

Series 6: Ecology

2. Biotic and abiotic factors

The resources that plants and animals compete for and the factors that can change.

• 10 mins

Series 6: Ecology

3. The carbon cycle

What happens to carbon at each stage of the cycle and the different processes involved.

• 8 mins

Series 6: Ecology

4. The water cycle

The important processes throughout the cycle and what happens to water during each stage.

• 8 mins

Series 6: Ecology

5. Decomposition

Factors that determine the rate of decomposition including temperature, water and oxygen.

• 9 mins

Series 6: Ecology

6. Biodiversity and human impact on the environment

Why high levels of biodiversity are very important for our planet.

• 10 mins

Series 6: Ecology

7. Climate change

How climate change affects organisms and ecosystems.

• 11 mins

Series 7: Exam techniques for science exams

1. Introduction to exam techniques

Dr Alex Lathbridge gives you tips and advice on Science exam techniques.

• 8 mins

Series 7: Exam techniques for science exams

2. How to revise

Dr Alex Lathbridge breaks down how to revise for your GSCE Biology exams.

• 10 mins

Series 7: Exam techniques for science exams

3. Command words

Understanding the different command words in your Science GCSE exams.

• 9 mins

Series 7: Exam techniques for science exams

4. Six-mark answers

How to write six-mark answers in your Science GCSE exams.

• 10 mins

Series 7: Exam techniques for science exams

5. Maths skills

Brush up on the maths you need for your exam - percentages, averages & converting units.

• 11 mins

Series 7: Exam techniques for science exams

6. Data analysis and application

Data analysis and Application Questions with Dr Alex Lathbridge

• 10 mins

Series 7: Exam techniques for science exams

7. Questions about practicals

Questions about Practicals with Dr Alex Lathbridge.

• 11 mins

Series 7: Exam techniques for science exams

8. Biological terminology

Revise the key science terms that are hard to spell.

• 10 mins