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Final Autoevaluation 1.02 - Plant nutrition
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J. van Helmont's experiment Van Helmont (1577-1644), a Flemish doctor and chemist, thought that in addition to water, air and substances in soil, other elements must be necessary for plant…
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Think about it. The responses of plants
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Remember what you have studied in this section and answer the questions: Discuss whether a plant would respond to light if the tips of the stem were cut off. Explain why poinsettias are typical…
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Work it out. The natural environment
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Remember what you have studied in this section and answer the questions: What environmental conditions prevent the existence of life on the other planets in the Solar System? Why is light a limiting…
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Complete. Concept map
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Complete the concept map:
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Motion
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A moving object is any object which changes position over time. 1.1. The trajectory of motion A trajectory is a line which connects the different positions occupied by a moving object (figure 1). A…
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Ways to save energy
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Look at the pictures and answer the questions. Which of these measures do you apply? Which do you think are the most useful?
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True/False. Heat
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Answer true or false Heat is the energy transferred from hot bodies to cold bodies. Heat also is sometimes called thermal energy. Cold bodies give cold to hold bodies. Hot bodies have less internal…
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The Enlightenment
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3.1. What was the Enlightenment? The Enlightenment was an intellectual movement that developed in Europe during the 18th century. It criticised the Ancien Régime, and its system of power and beliefs.…
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The collapse of absolutism
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Towards the end of the 17th century, British politics experienced dramatic changes. At the same time, a series of reforms, known as enlightened despotism, spread throughout Europe. 4.1. The English…
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The alternation of power
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In recent years, political power in the government of Spain has alternated between two parties: the Socialist Party and the Popular Party. 3.1. The Socialist era (1982-1996) In the 1982 elections, the…
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