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Colour
The world appears to be a colourful place, but what are colours? What properties of light determine what colour we see? Physics - Waves - Learning Points. Colour is how our brains perceive different wavelengths of light. Newton...
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Global Dimming
Even though the planet is warming, the amount of sunlight reaching the Earth's surface is decreasing. What is causing this, and what effect does it have? Earth Science - Human Impacts - Learning Points. Global dimming is the reduction in...
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Plants in Extreme Environments
To survive, plants have developed adaptations to regulate temperature and water, and maximise the capture of sunlight. Some plants have even evolved to survive in extreme environments of hot deserts and Polar regions. Biology - Plants -...
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The Water Cycle
All water on planet Earth is constantly cycled from the atmosphere, into reservoirs, and through plants and animals. The Earth's water has completed this cycle around 8 million times. Earth Science - Weather - Learning Points. Water on...
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What is a Food Chain?
How energy is passed through living things can be described as a food chain. Journey through a food chain, from primary producers at the bottom to tertiary consumers at the top. Biology - Ecosystems - Learning Points. A 'food chain'...
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Solar Power - Harnessing Sun’s Energy
The Sun has the potential to meet all our energy needs, if only we could harness it efficiently. Why is it so difficult to efficiently convert and store this energy? Earth Science - Earth's Resources - Learning Points. The Sun provides...
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Oil Spills - Environmental Impact
Offshore oil spills can lead to decades of ecological harm for marine life. How can we clean-up oil spills and limit damage to the environment? Earth Science - Human Impacts - Learning Points. Offshore oil spills float on the surface of...
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Algae: Diverse and Vital Organisms of Our Ecosystems
Discover the amazingly diverse world of algae. These species come in all shapes and sizes, and are one of the most important groups of organisms on our planet. Biology - Ecosystems - Learning Points. Algae produce more oxygen than all...
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Oceans: Coral Seas
Coral seas are the most colourful and diverse habitats on Earth, built from a unique symbiotic relationship between coral larvae and algae. Biology - Ecosystems - Learning Points. Coral reefs are found in warm, tropical oceans and are...
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The Power of the Sun
How do we know how powerful the Sun's energy is from here on Earth? Measuring the surface area of an imaginary giant sphere holds the answer. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum....
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Tropical Rainforests
Tropical rainforests are competitive environments where plants must compete for space and resources. But other dangers threaten the balance and future of these important habitats. Biology - Ecosystems - Learning Points. Tropical...
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Healthy Beauty
Your outward appearance can be affected by what you put in your body as well as external factors. What are the vital nutrients for beautiful skin, hair and nails? Biology - Healthy Living - Learning Points. A balanced diet is the key to...
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High- and Medium-Level Clouds
What are the different types of clouds in the upper region of the troposphere? What do they look like and how are they are formed? Earth Science - Weather - Learning Points. High-level clouds are found between the Troposphere and the...
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Oceans: Sunlight Zone
The ocean's surface is teeming with creatures that live in water but need sunlight to survive. Biology - Ecosystems - Learning Points. The sunlight zone is the area between 0m and 200m beneath the surface of the sea and is home to...
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What do plants eat?
Find out how plants make their own food using sunlight, water and air. This is called photosynthesis. Living things - Amazing plants - What do plants need? Learning Points What do plants need to grow? Sunlight, water, air and soil....
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Day and Night - Earth’s Cycle
Exploring why Earth has day and night. Our universe - Planet Earth - Day and night Learning Points The Earth spins as it orbits the Sun. At any one time, half the Earth is facing the Sun (daytime) and the other half is in shadow...
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What is a shadow?
Find out what makes a shadow. The world around us - Light and sound - Shadows Learning Points A shadow is an area where light cannot reach. This means that shadows form wherever light is blocked. Shadows take a similar shape to the...
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What do plants need?
What do plants need to grow? They need sunlight, water, air and soil. Living things - Amazing plants - What do plants need? Learning Points What do plants need to grow? Sunlight, water, air and soil. A Twig Junior Film - Core science...
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Rainforest shadows
Trees in the rainforest create shadows and animals use the shadows to hide! The world around us - Light and sound - Shadows Learning Points A shadow is an area where light cannot reach. This means that shadows form wherever light is...
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Dinosaur extinction
Why did dinosaurs become extinct? Our universe - Story of life - Dinosaurs Learning Points All the dinosaurs are dead. We say that they are 'extinct'. Scientists think that an asteroid may have caused the dinosaur extinction. A Twig...
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The Sun as our main source of energy – Did you know?
Did you know that the waxy monkey frog has an ingenious way of protecting itself from the Sun's light? Physical processes - Energy and energy transfer - The Sun as our main source of energy Learning Points Some of the light energy from...
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What is a Rainbow? - Rainbow Formation
Understand how rainbows are formed. Physical processes - Light - White light Learning Points Rainbows are arcs of sunlight split into different colours. Rainbows are formed when water refracts and reflects white light. A Twig Curriculum...
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Light sources
Differentiating between light sources and light reflectors. Physical processes -Light - What is light? Learning Points Objects that emit light are called light sources. Objects that reflect light are called light reflectors. Reflectors...
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The Sun as a light source – True or false
True or false ... It takes eight and a half minutes for light from the Sun to travel to our planet? Physical processes - Light - The Sun as a light source Learning Points It takes eight and a half minutes for light from the Sun to travel...