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Classify. Physical and Chemical stimuli
EduBook Organización
- 1617 visitas
Indicate whether these are physical or chemical stimuli: Smell of vinegar. The temperature of water. The amount of carbon dioxide in the blood. The taste of salt. The feel of clothing. Light and the Sun.
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Interpreta. Orixe da enerxía consumida en España en 2007
EduBook Organización
- 1581 visitas
Observa o gráfico e responde as seguintes preguntas: Cal é a fonte de enerxía máis consumida en España? Que lugares ocupan o gas natural, o carbón e o uranio? Que lugar ocupan as enerxías renovables?
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Did you know?
EduBook Organización
- 1532 visitas
Hydrocarbons, such as petroleum and its derivates, are the simplest type of organic molecules. They are made up of carbon and hydrogen atoms and come from the remains of organisms that died millions of…
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Final Autoevaluation 1.04 - Plant nutrition
EduBook Organización
- 1462 visitas
To determine the impact of air quality on plant growth, the following experiment was carried out: Tomato seeds were planted in two greenhouses, but all plants received the same care. Carbon dioxide was…
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Match. Functions of the nutrients
EduBook Organización
- 1447 visitas
Match the main nutrients in plants to their functions. How do plants get their food? Carbon Dioxide (CO2) Functions: Obtain through: Water Functions: Obtain through: Mineral salts Functions: Obtain through:
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Indica as accións que o bisavó Xaime non podía realizar cando tiña a túa...
EduBook Organización
- 1443 visitas
Coller un refresco da neveira. Quentarse cunha estufa de carbón. Chamar por teléfono móbil. Lavar a roupa nunha lavadora. Xogar ao xogo das bólas. Xogar ao fútbol. Viaxar en tranvía. Conectarse á…
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Think and answer. Plants at night
EduBook Organización
- 1384 visitas
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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Find out more
EduBook Organización
- 1299 visitas
The surface of a leaf has many tiny holes in it, called stomata. These allow carbon dioxide and oxygen to flow in and out of the leaf so that photosynthesis and respiration can occur.
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Match. Photosynthesis and respiration
EduBook Organización
- 1274 visitas
Match the plant's activities with the time of day when they happen: The plant releases carbon dioxide. ➝ The plant needs oxygen from the air. ➝ Photosynthesis does not take place. ➝ The plant…
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Greenhouse effect
EduBook Organización
- 1255 visitas
Water vapour and carbon dioxide are involved in the greenhouse effect. The atmosphere acts like a greenhouse. The atmosphere holds part of the heat radiated from the Earth. This keeps the Earth's…
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