Recursos educativos oxygen página 9

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Interpret. Molecules and crystals
EduBook Organización
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Look at the pictures and answer the questions: In what way is a sulphur molecule different from a water molecule? In a glass of water, what is the proportion of hydrogen atoms to oxygen atoms? Describe…
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Copy and complete the crossword
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Copy and complete the crossword: Plants produce oxygen during … . Windmills were used to … wheat. A very strong wind which can cause a lot of damage. The layer of air that surrounds the Earth. A…
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Complete. Plants
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Solve the crossword by writing the word that corresponds to each definition: Plants do this when they absorb oxygen and release carbon dioxide. ➝ These plants grow in dark, damp forests. ➝ The part…
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Look at the diagram and answer the questions
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Look at the diagram and answer the questions: What does the diagram show us? What are the main gases in air? Is this sentence true or false? "Approximately 99% of the air is made up of nitrogen and…
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Final evaluation 8 - The Diversity of Life
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Find the false sentences and correct them: All algae are green in colour. All algae make their food through photosynthesis. All algae are multicellular organisms. All algae live in the sea. Algae…
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Complete. Plants
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Complete the text by putting these words in the correct spaces: mosses sunlight roots flowers algae leaves oxygen living things respire water Plants make up one of the groups of . Ferns, and are plants…
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True/false. Pregnancy
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Decide if the following statements are true or false: During sexual intercourse, a man deposits one sperm into a woman's vagina. ➝ Pregnancy begins at the start of sexual intercourse. ➝ The…
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Final Autoevaluation 6.03 - The natural environment. Ecosystems
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Choose the correct word to complete the sentence or answer the question: Light is necessary for organisms that make... The growth of plants toward light is an example of... Light does not influence...…
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Self-assessment T8 07 - Nutrition, breathing and circulation
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Match the function to each component of blood: They defend our body from microbes. They are very small cells that are needed for blood clotting. It transports nutrients to all the cells in our body.…
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Final self-evaluation 06 - Plants
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Decide if the following statements are true or false: Plants make their own organic matter through the process of photosynthesis. ➝ The organic matter is made from a combination of water and the…
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