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\nRedwoods\n

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\nCalifornian redwoods are some of the oldest and largest living organisms on the planet. How do they grow so tall and why are they under threat? Biology - Ecosystems - Learning Points. The coniferous forests on the pacific coast of North...\nCalifornian redwoods are some of the oldest and largest living organisms on the planet. How do they grow so tall and why are they under threat? Biology - Ecosystems - Learning Points. The coniferous forests on the pacific coast of North America were thriving long before the Alps had risen - 20 million years ago. The coniferous forest is home to giant redwoods - which grow to over 100m in height. The Sequoia Tree is one of the largest living organisms, at 90m tall and 1m thick, and it can live for over 3000 years. In the mid-19th century, the coniferous forests attracted loggers and the redwood were reduced by 90%. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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2:58
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Grade
6th - 12th
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nImagine Learning - Twig (middle years+)\n\n
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Date
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2010
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Additional Materials

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Concepts

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trees, rain, soil, height, north america, forests, years, logging
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Additional Tags

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forest, giant redwood, fertile, life-span, alps, human, pacific coast, inedible needles, conifers, bitter, resin, sequoia tree, mountain lion, black bear, redwood forests, needles, redwoods, earth, half, year, metre, century
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Classroom Considerations

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Best For: Explaining a topic
Video is ad-free
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Educator Ratings

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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Redwoods\" href=\"/subscription/new\">\"Redwoods\"\n\n
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