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Plant Transport *suitable for home teaching*

This film, from Twig World, explores how plants transport resources via the xylem and phloem. The key points made in the the film are: •Transpiration is the evaporation of water from leaves into the atmosphere. •It causes water to be sucked up from roots to the leaves. •Water enters the roots from the soil by...

Fractional Distillation *suitable for home teaching*

This film, form Twig World, looks at how the industrial process of fractional distillation transforms crude oil into a variety of products, from plane fuel to road surfacing. The key points made in the film are: •Extraction of crude oil from Fractional Distillation gives us many useful products. •First it is...

What is a Volcano?

This film, from Twig World, looks at the cycle of lava as a destructive and constructive force, building the structure of volcanoes and powering their devastating impact. The key points made in the film are: •Volcanoes are landforms that occur along plate boundaries. •Volcanoes consist of a magma chamber, main...

Plants and Medicine: Aspirin *suitable for home teaching*

This film, from Twig World, looks at the history of aspirin, which can be traced back to the Egyptians, where it comes from and what makes it so special. The key points made in the film are: •Aspirin originates from an ancient plant remedy used by the Egyptians. •They chewed willow bark to relieve pain and fever...

Esters and Perfumes *suitable for home teaching*

This film, from Twig World, looks at esters which occur in nature and have been harnessed by the perfume industry. It explores what esters are and how are they made and used. The key points in the film are: •Esters give many fruits their scents, including bananas, lavender and pineapples. •They are produced by a...

ARKive on Tour

Produced by ARKive, these materials are designed to teach students aged 11-14 about the variety of habitats worldwide and the diversity of species found in each habitat. The activity also highlights topics including interdependence, adaptation and how species evolve specialised features.

Working in groups,...

Tropisms and Hormones *suitable for home teaching*

This film, from Twig World, looks at plant hormones and tropisms. The key points made by the film are: •Tropisms allow plants to seek out the best conditions for survival. •Tropisms are controlled by hormones called auxins. •Tropisms react to varying conditions of light, gravity and water. •There are both...

Photosynthesis *suitable for home teaching*

This film, from Twig World, journeys into the chloroplast to show how plants convert sunlight into usable chemical energy through the process of photosynthesis. The key points covered in the film are: •Leaves are small solar-powered food factories. •Through a process called photosynthesis they make their own food...

Mapping the Sea *suitable for home teaching*

This film, from Twig World, looks at how the oceans can be mapped. Charting the waters around the Scottish island of Orkney was a pivotal moment in maritime mapping. But a reliance on outdated maps places modern ships in danger. The key points made in the film are: •Before mapping of the sea floor began, hazards...

Recycling Plastics *suitable for home teaching*

This film, from Twig World, looks at the differences between thermosetting, thermosoftening and partially biodegradable plastics, and how they can be recycled. The key points made in the film are: •We throw away a lot of plastic and most is non-biodegradable. •It can be recycled using mechanical and chemical...

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