Curated Video
The Race for Absolute Zero: Liquefying Gas
How a race between two scientists to liquefy gases led them near to absolute zero - the coldest temperature possible. Physics - Energy And Radioactivity - Learning Points. Absolute zero occurs at -273.15 degrees Celsius. Absolute zero is...
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Ocean Conveyer
A super-current runs from the Arctic past South America to the Indian Ocean. This is major factor influencing our climate, controlling everything from currents to the weather. Earth Science - Human Impacts - Learning Points. The great...
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Types of Weather: Introduction
The weather systems on our planet are all driven by one thing: air. Discover how our weather is driven by energy from the Sun, affecting the movement of air. Earth Science - Weather - Learning Points. Our weather is a chaotic and complex...
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Life in the Freezer
From polar bears to emperor penguins, how animals and plants survive in some of the harshest habitats on Earth - the polar regions. Biology - Adaptation And Evolution - Learning Points. A host of different animals survive in the coldest...
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Heat Transport
Conduction, convection and radiation are all ways in which heat is transported. How does each work, and what are they useful for? Physics - Energy And Radioactivity - Learning Points. The three types of heat transport are conduction,...
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Tundra
Find out what animals and plants do to survive in Earth's coldest biome. Biology - Ecosystems - Learning Points. The tundra is Earth's coldest biome. The Arctic tundra is found near the North Pole. The alpine tundra is found around the...
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Underwater Volcano
We create an underwater volcano by placing a conical flask of hot coloured water in a tank of cold water. The hot coloured water rises through the cold, demonstrating convection. Physics - Energy And Radioactivity - Learning Points....
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How We Touch
How the four sensory receptors in our skin, which detect heat, cold, pain and pressure, help us to feel an object, and can even help us tell if we like something or not. Biology - Being Human - Learning Points. The skin contains millions...
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Climate Influences
Climate varies across the world, producing distinct climate zones. Discover the many factors that create these differences. Earth Science - Weather - Learning Points. Climate varies across the world. The world can be divided into six...
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Asteroid - Rocky Objects in Space
Objects composed of rocky or metallic materials, mainly found orbiting the Sun in a region called the asteroid belt between Mars and Jupiter. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
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Melting
Melting is when a solid turns into a liquid. The world around us - Exploring materials - Freezing and melting Learning Points Some places on Earth, such as the Arctic, are so cold that seawater freezes during the cold winter months. When...
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Vaccines
Vaccines can stop us from getting lots of nasty viruses. The world around us - Inventions - Changing lives Learning Points Vaccines can stop us from catching certain diseases. Vaccines and other medical inventions are important in saving...
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Touch - Sensory Receptors
Our skin contains receptors that give us the sense of touch. Living things - Our senses - Touch Learning Points We have receptors in our skin that help us to feel different things. This is called our sense of touch. A Twig Junior Film -...
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The Solar System – Clip
Find out why the Earth's path of orbit is known as the 'Goldilocks Zone'. Physical processes - The Earth and beyond - The Solar System Learning Points The distance of Earth's orbit from the Sun is known as the 'Goldilocks zone'. A Twig...
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Expansion and conduction – What happens next?
A balloon is dipped in liquid nitrogen ... what happens next? Material processes - Changing materials - Expansion and conduction A Twig Tidbit Film - What happens next? A short section of film is played and the children have to guess...
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Why classify? – Clip
Find out why lizards are an extremely diverse group of reptiles. Life processes - Variation and classification - Why classify? Learning Points Classification is grouping different living things together by their features. A Twig Tidbit...
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Reducing the spread of disease – True or false
True or false ... A sneeze can travel at 60km per hour? Life processes - Humans and other animals - Reducing the spread of disease Learning Points A sneeze can travel at between 65 and 180 kilometres an hour. A Twig Tidbit Film - True or...
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The world's highest hospital
Venture to the world’s highest hospital, at Mount Everest's Base Camp. People and places - Physical geography - Mountains Learning Points There is less oxygen available to breathe at the top of a mountain. The Earth's crust is divided up...
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Iguanas
Journey to the Galapagos to see how cold-blooded iguanas keep themselves warm. Physical processes -Energy and energy transfer - Heat transfer Learning Points The Sun's heat energy travels to Earth as infrared radiation. Convection:...
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Insulation
How do insulators manage to keep the heat both in and out? Material processes - Changing materials - Insulation Learning Points Insulators do not allow energy to pass easily through them. Thermal insulators do not allow heat energy to...
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Thermos flask
How do these flasks work to keep drinks at a constant temperature? Material processes - Changing materials - Insulation Learning Points Thermal insulators do not allow heat energy to flow easily through them. Vacuums are insulators...
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Condensation and freezing
Why do water drops form on cold windows and why does water freeze? Material processes - Solids, liquids and gases - Changes of state Learning Points Condensation is the change of state from gas to liquid. Freezing is the change of state...
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Body temperature
An insight into how our bodies maintain a constant internal temperature – no matter the temperature of the surroundings. Physical processes -Energy and energy transfer - Heat and temperature Learning Points The average internal human...
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The common cold
Everybody catches a cold at some point in life ... but how do they get infected? Life processes - Humans and other animals - Reducing the spread of disease Learning Points Colds are caused by viruses that spread from person to person....