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Unit 4 of 4

Explaining Change

AQA GCSE Combined Science Synergy 8465 — Life and Environmental Sciences · 28 lessons · 10 quizzes

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4.1

Unit 4 overview: Explaining Change20 min

4.1.1

Development Of The Earth’s Atmosphere20 min

4.1.2

The Carbon Cycle20 min

4.1.3

The Greenhouse Effect20 min

4.1.4

Human Impacts On The Climate20 min

4.1.5

Climate Change: Impacts and Mitigation20 min

4.1.6

Pollutants That Affect Air Quality20 min

4.1.7

The Water Cycle20 min

4.1.8

Sources Of Potable Water20 min

4.1.9

Required Practical 11: Water Analysis20 min

4.2.1

Levels Of Organisation In An Ecosystem20 min

4.2.2

Interdependence and Competition20 min

4.2.3

Factors That Affect Communities20 min

4.2.4

Field Investigations20 min

4.2.5

Required Practical 12: Population Sampling20 min

4.2.6

Biodiversity20 min

4.2.7

Negative Human Impacts On Ecosystems20 min

4.2.8

Positive Human Impacts On Ecosystems20 min

4.3.1

Chromosomes and Genes20 min

4.3.2

Sex Determination In Humans20 min

4.3.3

Single Gene Inheritance20 min

4.3.4

Genotype and Phenotype20 min

4.4.1

Mutations20 min

4.4.2

Evolution Through Natural Selection20 min

4.4.3

Evidence For Evolution20 min

4.4.4

Identification and Classification Of Living Things20 min

4.4.5

Selective Breeding20 min

4.4.6

Genetic Engineering20 min

Practice for this unit

4.1.2 The Carbon Cycle - MCQ practice (21 questions)

Marked questions with instant feedback and a full review.

4.1.7 The Water Cycle - MCQ practice (20 questions)

Marked questions with instant feedback and a full review.

4.2.6 Biodiversity - MCQ practice (9 questions)

Marked questions with instant feedback and a full review.

4.3.1 Chromosomes and Genes - MCQ practice (50 questions)

Marked questions with instant feedback and a full review.

4.3.1 Chromosomes and Genes - MCQ practice part 2 (14 questions)

Marked questions with instant feedback and a full review.

4.3.2 Sex Determination In Humans - MCQ practice (16 questions)

Marked questions with instant feedback and a full review.

4.3.3 Single Gene Inheritance - MCQ practice (50 questions)

Marked questions with instant feedback and a full review.

4.3.3 Single Gene Inheritance - MCQ practice part 2 (2 questions)

Marked questions with instant feedback and a full review.

4.4.2 Evolution Through Natural Selection - MCQ practice (13 questions)

Marked questions with instant feedback and a full review.

4.4.5 Selective Breeding - MCQ practice (2 questions)

Marked questions with instant feedback and a full review.