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Light and sound
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We perceive most of the things around us because we can see or hear them. Most objects do not have their own light. We see them because they are illuminated by light from natural and artificial sources,…
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Self-evaluation 9 - Society and the environment
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Complete these sentences about the exploitation of resources with the missing word: The global rise in population has caused greater demand for land and natural resources. Although there are still many…
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Introduction - Heat and temperature
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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Check. Noise pollution
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Remember what you have studied in this section and answer the questions: What are the effects of continually listening to very intense sounds? Why do you think very intense sounds cause the effects they…
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Remember - Heat and temperature
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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Investigate - Heat and temperature
EduBook Organización
- 4031 visitas
Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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End-of-unit evaluation - Heat and temperature
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- 4014 visitas
Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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The secondary sector: industry and construction
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Industry The industrial sector in Spain includes: The transformation of raw materials into primary products such as steel and concrete. The manufacture of capital goods. These are machines and tools…
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Summaries - Energy
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1. Energy Energy is the power that causes change in things and allows us to carry out work. Energy is produced by energy sources. The main source of energy on Earth is the Sun. Energy exists in several…
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