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Water purification and treatment
EduBook Organización
- 2655 visitas
Water goes through a series of stages both before and after it is used for consumption. Water collected from a river or lake is purified for human consumption. After human use, contaminated water and…
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What plants need
EduBook Organización
- 2593 visitas
1.1. Plant nutrition Nutrition is all of the processes that living things use to convert the foods they ingest. They transform these nutrients into biomolecules that they need to make cells and tissues.…
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Video game: Cell Structure
Tiching explorer Organización
- 1 lo usan
- 4478 visitas
In this activity we learn to distinguish three cells: prokaryote, animal and plant. We also understand the function of the organelles in these cells. We may zoom in and see enlarged views of different…
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Who is it?
EduBook Organización
- 2234 visitas
Match the sentences to the correct character. You can use each character more than once. He looks after the garden and he’s not friendly. There are twelve children in her family. She meets Mary in…
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Different types of roots
EduBook Organización
- 2135 visitas
In some plants, the primary root grows much bigger than the secondary roots of the plant. This is known as the tap root. Many smaller roots grow out from the tap root. Plants with this root system can…
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Learn. Observe photosynthesis
EduBook Organización
- 2068 visitas
Material A geranium Scissors Paper clips Tweezers Aluminium foil A plate Alcohol Iodine A glass jar with a lid A pipette What do we do? During photosynthesis, plants make their own food in the form of…
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The transport of substances in plants
EduBook Organización
- 2042 visitas
2.1. Plant transport systems Plants have two transport systems, one for each type of sap that is transported: Xylem. This system transports raw sap (water and mineral salts) from the root up the stem to…
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Investigate. Non-renewable sources of energy
EduBook Organización
- 2025 visitas
Remember what you have studied in this section and answer the questions: Find out what other products are obtained from coal and oil and say what they are used for. Find out how a nuclear power station…
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The importance of plants in everyday life
EduBook Organización
- 2010 visitas
Part of our diet is made up of plant products. They are very important. They provide us with carbohydrates, vitamins, mineral salts and fibre, which are all essential for a healthy diet. When we eat…
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Reproduction in flowering plants
EduBook Organización
- 1985 visitas
Some plant species reproduce asexually, but most plants reproduce sexually. A pollen grain fertilises the egg cell inside the ovule. The sexual organs of spermatophytes (flowering plants) are in the…
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