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SEARCH RESULTS All clips in All Levels> All Subjects> All Topics containing “+Why-do-plants-need-roots”

Clip description		Keywords
	Why do plants need roots? Duration: 00:32 An explanation of why roots are important to a plant.	stem, leaves, support, soil, roots, ecologist, anchor, skeleton, Darwin

	An introduction to seed germination and growth Duration: 00:59 Time lapse photography is used to show the growth of roots and shoots from a seed.	shoots, roots, seeds, leaves, light, soil, water, growth, germination, Darwin

	Bromeliad growth in the rainforest Duration: 00:49 An explanation of how a bromeliad plant finds sunlight and water in the tropical rainforest.	light, water, bromeliad, growth, rainforest, plant, roots, leaves, Darwin

	Nitrogen-fixing leguminous plants Duration: 01:02 The role of nitrogen-fixing leguminous plants in soil improvement is examined and crop rotation is briefly discussed.	population, fertilisers, nutrients, legumes, bacteria, nitrogen, soil, chemistry, bitesize

	How cacti survive in the dry desert Duration: 02:07 A look at how cacti are able to survive and grow in the harsh, dry desert environment by storing water in their fleshy stems.	cacti, water, storage, skin, roots, desert, rain, flesh, wood, Darwin

	Why do plants need water? Duration: 00:53 An explanation of the conditions needed for plant growth, with particular emphasis on water requirements.	growth, light, water, conditions, soil, temperature, warmth, cacti, rice, water hyacinth, cereals, potatoes, maize, barley, wheat greenhouse, Darwin

	Desert erosion Duration: 01:49 Deserts are eroded by rainwater run-off and the wind. Desert soil is far from useless; it is rich in nitrogen and mineral compounds.	desert, erosion, soil, wind, plants, roots, fragile, nitrogen, mineral, humus, sub-soil, bedrock

	Market science – food groups and roots, leaves and fruit Duration: 05:42 At Leicester market, all the different food groups are on sale, and a farmer in Surrey shows the different parts of plants that we eat, and explains how he grows them.	markets, science,food groups, meat, fish, butcher, fruit, vegetables, sugar, sweets, cereals, bread, dairy, cheese, farm, farmer, plants, vegetables, roots, carrots, leaves, cabbage, fruit, strawberries, growth, nutrients, primarymarkets

	Plant photosynthesis Duration: 01:14 An animated description of the process of plant photosynthesis.	photosynthesis, stomata, chloroplasts, chlorophyll, carbohydrates, oxygen, carbon dioxide, biology, plants, bitesize

	What do plants need for healthy growth? (no narration) Duration: 00:59 Plants need water, warmth, food and sunlight for healthy growth.	plants, growth, growing, warmth, food, sunlight, germination, Darwin

	Trees - root system and bark Duration: 03:41 An explanation of the extent and purpose of a tree's root system and how bark functions.	roots, tree, bark, sap, oak, acorn, biology, science, plants

	A visit to the allotment Duration: 02:21 Barnaby Bear meets Katrina at the allotment where she grows fruit and vegetables. She shows Barnaby around and Barnaby helps with watering some of the plants.	fruit, vegetables, health, sunflowers, bees, courgettes, marrows, pumpkins, carrots, lettuce, tomatoes, allotment, seeds, growing, watering, roots, leaves, window boxes

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