Curated Video
Factpack: Bacteria
Find out about these tiny life-forms that have the potential to determine the big things in life, such as whether we live or die. Biology - Cells And DNA - Learning Points. A Twig FactPack Film. Open a discussion on what has been already...
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Numbers: Animal Maths
See monkeys do addition and parrots count... but is this mathematical ability really what it seems? Explore animals' ability to do simple maths. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the...
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Beyond Human Hearing
Humans can only hear a certain range of sound frequencies. Discover the sounds we can't hear and why they can be useful. Physics - Waves - Learning Points. The frequency of sound waves determines whether we can hear them. High-frequency...
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Evolution of Man: The Evidence
Discover how fossils help scientists to piece together evolutionary changes in early man - and how one very special fossil in Africa led historians down an exciting new path. Biology - Adaptation And Evolution - Learning Points. Fossils...
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Pollution: Water
How does water get polluted? Discover what water pollution means for the environment and how it affects humans. Earth Science - Human Impacts - Learning Points. Industry, agriculture and sewage all contribute to water pollution....
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The Greenhouse Effect
Without the greenhouse effect, our planet would be too cold to inhabit, but it's currently a major cause of global warming. What is the greenhouse effect, and why is it such a conundrum? Earth Science - Human Impacts - Learning Points....
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Darwin's Dilemma
The creation, controversy and competition surrounding the publication of Darwin's most iconic work: The Origin of Species. Biology - Adaptation And Evolution - Learning Points. Darwin, an English scientist, worked on his theory of...
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What Causes Extinction?
A look at the main causes of extinction from new diseases to climate change to competition from another species. Biology - Adaptation And Evolution - Learning Points. Extinction is a natural part of the evolutionary cycle. It occurs more...
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Nuclear Weapons
How the principles of nuclear physics have been used to unleash massive destruction. How do fission bombs and thermonuclear bombs work, and what are the differences between the two? Physics - Energy And Radioactivity - Learning Points....
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Early Man and Agriculture
Why was the development of early agricultural techniques a crucial evolutionary step? Discover how early farming techniques transformed Neanderthal Man. Biology - Adaptation And Evolution - Learning Points. The last ice age ended 12,000...
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Dolly the Sheep
In 1997, Scottish scientists announced the first successful cloning of an adult animal - Dolly the Sheep. But her birth was mired in controversy. Biology - Cells And DNA - Learning Points. Dolly the sheep was the world's first clone....
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The Ozone Layer
The world has already faced a major global climate challenge: the hole in the ozone layer, discovered in 1985. Find out what ozone is, why it's important, and how the ozone hole is being repaired. Earth Science - Human Impacts - Learning...
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Breeding and Behaviour
A unique Siberian breeding experiment tried to rid wild foxes of their aggressive genes. Was the experiment successful? Biology - Cells And DNA - Learning Points. In 1959, Siberian scientists set up two breeding programmes using silver...
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Chimps: Our Closest Relatives?
Our closest relatives are chimpanzees, with whom we share 98% to 99% of our DNA. But how similar does this actually make us? Biology - Adaptation And Evolution - Learning Points. Chimpanzees are our closest relatives, with whom we share...
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Taxonomy
The science of organising and categorising different things into groups based on similarity. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Humans and other animals' needs – Pixelate
What is it? ... It's a termite mound! Life processes - Humans and other animals - Humans' and other animals' needs A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.
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Where did humans come from?
Meet our oldest relatives. Our universe - Story of life - Life on Earth Learning Points Life has been on Earth for a very long time, but humans only evolved very recently by comparison. A Twig Junior Film - Core science concepts...
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The human skeleton – True or false
True or false ... Giraffes have more bones in their neck than humans? Life processes - Body systems - The human skeleton Learning Points
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Classifying living things – True or false
True or false ... Starfish, vultures and humans belong to the same kingdom? Life processes - Variation and classification - Classifying living things Learning Points Visually different species can all belong to the same kingdom. A Twig...
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The respiratory system – True or false
True or false... humans can hold their breath for a maximum of two minutes? Life processes - Body systems - The respiratory system Learning Points Humans can hold their breath for longer than two minutes. A Twig Tidbit Film - True or...
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Natural and synthetic
Find out the difference between natural and synthetic materials, and how they are used. Material processes - Classifying materials - Natural and artificial materials Learning Points Natural materials can come directly from the Earth or...
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Breeding silver foxes
In the 1960s, silver foxes were bred in Siberia as an experiment in behaviour. What did this experiment show? Life processes - Living processes - Reproduction Learning Points Acquired characteristics are a result of environment and...
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Farming food
How humans and some animals, such as ants, farm food to maintain their food supply. Life processes - Living things in their environments - Obtaining food Learning Points Farms are areas of land or water devoted to growing plants or...
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GPS wildlife tracking
Find out how scientists in Namibia, Africa, are using GPS to track and to conserve wildlife. People and places - Mapping - GPS Learning Points A GPS device is constantly receiving satellite signals and updating its position on the map....