Tag Archives: human impact

B10 Human Influences on the Ecosystem (Combined Science)

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. 

Here are key terms and some definitions: Key Terms B11

Eutrophication – a short video from The Virtual School:

Mr W sings Seven ways to reduce carbon.

Science in Focus – The Human Impact – a 19m video and here’s a short (less than 5 minute) video clip from BBC iScience – Acid Rain.

What really happens to the plastic you throw away:

The Great Pacific Ocean Garbage Patch:

C3 Impacts of Humans on Ecosystems (SL & HL)


BioKnowledgy C.3 Impacts of humans on ecosystems from Chris Paine

UK National STEM Centre links to resources on this topic.

Bio C3 Human Impact in 5 minutes from roxprice:

5 Human Impacts on the Environment: Crash Course Ecology #10 with Hank Green:

ALIEN SPECIES

Invasion of the deadly Cane Toad (4m video); Giant Cane Toad (1m); and for fun: Cane-Toad, an animation short, Pixar-style

The threat of invasive species – Jennifer Klos (5m from TED-Ed); Are Invasive Species Breaking Ecosystems? (4m); Invasive Species, Rats in Pacific Islands (NatGeo, 2m)

25 most invasive creatures on earth (10m); Island solutions: Eradicating invasive species for biodiversity restoration (3m)

BIOMAGNIFICATION

DDT Let’s Put It Everywhere 1946 (5m 45s); DDT A Threat to America’s Bald Eagles (3m); Bioaccumulation and Biomagnification in Marine Ecosystems (4m)

MARINE PLASTIC

What really happens to the plastic you throw away:

The Great Pacific Ocean Garbage Patch:

and some good news! – India has banned all forms of disposable plastic in its capital (1m video).

IGCSE Bio Topic 21 – Human Influences on Ecosystems

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. 

Topic 21 revision notes in downloadable word format; to be completed.

This powerpoint covers a lot of Topic 21, as well as revising a lot of Topic 19:

Igcse biology edexcel 4.1 4.17 from Marcos Rodriguez

Science in Focus – The Human Impact – a 19m video.

21.1 Food Supply

A work in progress!

21.2 Habitat Destruction

21.3 Pollution

WATER POLLUTION

EUTROPHICATION

Eutrophication – a short video from The Virtual School:

A lesson (how sewage kills fish) from Mr Dare:

PLASTICS

What really happens to the plastic you throw away:

The Great Pacific Ocean Garbage Patch:

ENHANCED GREENHOUSE EFFECT & CLIMATE CHANGE

A lesson on the Enhanced Greenhouse Effect from Mr Dare:

Mr W sings Seven ways to reduce carbon.

ACID RAIN

A lesson on Acid Rain from Mr Dare:

Here’s a short (less than 5 minute) video clip from BBC iScience – Acid Rain.

21.4 Conservation

A work in progress!