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Defensive Plants - Plant Protections
Plants have developed an array of chemical, mechanical and mimicry methods to fight off predators, meaning that they are not as defenceless as they seem. Biology - Plants - Learning Points. Plants have evolved defence mechanisms to ward...
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Why Do Leaves Change Colour?
Throughout the year, some leaves change colour from green, to yellow, to red. Discover the role chlorophyll, carotene and anthocynanin pigments play in making this happen. Chemistry - Reactions - Learning Points. Leaf colour depends on...
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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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Photosynthesis and Starch
We put three different plants under different conditions to demonstrate that both light and carbon dioxide are needed for photosynthesis to occur. A leaf from each plant is taken and heated in ethanol to remove the pigment. These are...
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Water Uptake in Plants
We place two privet hedge shoots under different conditions to see how the amount of water they draw up will change. They are both placed in measuring cylinders with the same amount of water and a layer of oil is added to the top to...
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Leaf Chromatography
We separate the different pigments in a beech leaf using chromatography. The leaf is broken up and ground with sand and propanone before being transferred to some chromatography paper. This is then lowered into pigment solvent and we can...
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Depositional Features
Discover more about depositional features, such as floodplains and levees. Some of the world's largest deltas are visible from space. What are these fertile and diverse features, and how are they formed? Earth Science - Geology -...
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Deciduous Forests
Deciduous forests occur worldwide from Britain to China. Discover the dramatic seasonal changes that take place in these habitats, as well as the vast array of plant and animal life found within them. Biology - Ecosystems - Learning...
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Plant Mimics
From orchids that mimic the appearance of bees to the carrion flower which smells like rotting meat, discover the devious world of the plant mimic. Biology - Plants - Learning Points. Some plants use mimicry to aid reproduction or...
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Transpiration
The loss of water vapour from plants to the atmosphere. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
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Xylem
The system of tubes inside plants that transport water and dissolved minerals from the roots up to the leaves. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Parts of a Plant - Plant Components
Plants can look very different, but they have the same parts – roots, stems, leaves and flowers. Living things - Amazing plants - Plants Learning Points There are lots of different types of plants. Plants have roots, stems, leaves and...
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Plant life cycle
How does a tiny seed turn into a full-grown plant? Take a closer look at the life cycle of a plant. Living things - Amazing plants - Plant life cycle Learning Points Plants have a life cycle. Plants grow from seed, to seedling, to...
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Red crab spider
The red crab spider lives on a pitcher plant. It uses the pitcher plant to catch its food. Living things - Animal kingdom - Where do animals live? Learning Points Different animals have different homes. Some animals use their homes to...
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Parts of a plant – Did you know?
Did you know that most (but not all) plants need leaves to obtain food? Life processes - Green plants - Parts of a plant Learning Points Not all plants make their own food through photosynthesis. A Twig Tidbit Film - Did you know? A...
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Food chains – What happens next?
Leaves fall to the forest floor ... but what happens next? Life processes - Living things in their environments - Food chains A Twig Tidbit Film - What happens next? A short section of film is played and the children have to guess what...
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Seasons – True or false
True or false ... All trees lose their leaves over winter? Physical processes -The Earth and beyond - Seasons Learning Points
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Role of the environment – Clip
Why do the leaves of deciduous trees turn red and fall off every winter? Life processes - Living things in their environments - Role of the environment Learning Points Deciduous trees shed their leaves every year due to the changing...
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Plant adaptations
What do plants and animals have in common? Life processes - Green plants - Plants and their environments Learning Points Plants need water, air and light to grow. Plants can adapt to their surroundings to survive. A Twig Curriculum Film....
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How Plants Defend Themselves
Plants have many adaptations that protect them from hungry predators. Life processes - Green plants - Plants and their environments Learning Points Plants can adapt to their surroundings to survive. Plants have defence mechanisms to...
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Parts of a Plant - Plant Anatomy
Learn all about the parts of a plant. Life processes - Green plants - Parts of a plant Learning Points Leaves use water, carbon dioxide and sunlight to carry out photosynthesis. Root hairs absorb water and nutrients from the soil. The...
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Adaptation - Survival Mechanisms
Discover the incredible ways in which animals and plants adapt to their environments. Life processes - Living things in their environments - Adaptation Learning Points Plants and animals adapt to their environment in order to survive....
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Parts of a flower
Are flowers male or female? The answer is, they're both! Life processes - Green plants - Reproduction in flowering plants Learning Points All flowers have both male and female reproductive parts. The stamen is the male part of a flower....
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Life cycle of an oak tree
Do you know how many years an oak tree can live for? Life processes - Green plants - Plant growth Learning Points Following germination a taproot, grows from the seed. The first shoots from a seed move through the soil towards light. A...