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\nWhy Do Leaves Change Colour?\n

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\nThroughout 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...\nThroughout 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 which pigment molecules occurs in the greatest quantity. Chlorophyll is the pigment that gives leaves their green colour and allows them to covert solar energy into chemical energy. Carotene is a pigment that changes the color of leaves to orangey yellow during the autumn as temperatures drop. Anthocyanin is a pigment that turns leaves red because more sugars accumulate in leaves in autumn. 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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2:53
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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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Concepts

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leaves, chlorophyll, trees, photosynthesis, plants, energy, autumn, pigments
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Additional Tags

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change, colour, carotene, anthocyanin, pigment, chemical, reactions, deciduous, seasonal, green, red, orange, yellow, stable, quantity, vibrant green, leaf cells, occurs, leaf, sugars, year, occur, anthocyanins
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Classroom Considerations

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Best For: Explaining a topic
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