Recursos educativos oxygen página 6

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Machthe pictures to the sentences
EduBook Organización
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Machthe pictures to the sentences: He is using the force of the wind. → The atmosphere is a layer of air that surrounds the Earth. → They produce oxygen. → It can fly because when air…
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Think - Air and life
EduBook Organización
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The quantity of gases in the air is less at high altitudes. There is less oxygen at the top of a mountain than at sea level. Why do you think the mountain climber in the photo is wearing an oxygen mask?
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Interpret. A table
EduBook Organización
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In order to analyse the amount of humus in the soil, we react a sample of it with hydrogen peroxide. The carbon in the organic material reacts with this compound and as a result, the reaction gives off…
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A life cycle
Tiching explorer Organización
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This iPad application is designed to help us understand life cycles. We learn about the following cycles: Frog life cycle, water life cycle, butterfly cycle, plant cycle, pollination, photosynthesis,…
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Check what I know
EduBook Organización
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Plants need food to grow and survive. → Water travels from the leaves to the roots. → Plants make their food at night. → Plants make their food in the leaves. → Plants produce oxygen. → Raw…
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Choose. Matter: atoms, molecules and crystals
EduBook Organización
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Choose the correct answer: What is the difference between a sulphar molecule and a water molecule? In a glass of water, what is the proportion of hydrogen atoms to oxygen atoms? Describe the structure…
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Answer. Respiration in plants
EduBook Organización
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Remember what you have studied in this section and answer the questions: What is respiration? What do plants NOT do at night? How are oxygen and carbon dioxide absorbed in algae?
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Unit 2
EduBook Organización
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The atmosphere makes wind, it can make a windmill spin. Although you cannot touch it, you can feel it on your skin. Although it has no colour, it makes the sky look blue, With nitrogen, oxygen, and…
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Look and answer. Exchange of gases in cells
EduBook Organización
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Look at the diagram showing cellular respiration: Which gases are transported by the blood? What do oxygen and carbon dioxide have to pass through to enter and leave the cells?
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Think and answer. Plants at night
EduBook Organización
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At night, plants do not photosynthesise, but they continue to breathe. They absorb oxygen and release carbon dioxide. Why do you think it is not a good idea to sleep in a bedroom with plants?
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