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Light and sound
EduBook Organización
- 1 lo usan
- 4252 visitas
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
EduBook Organización
- 4271 visitas
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
EduBook Organización
- 4002 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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Remember - Heat and temperature
EduBook Organización
- 3940 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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Investigate - Heat and temperature
EduBook Organización
- 3927 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
EduBook Organización
- 3893 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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Check. Noise pollution
EduBook Organización
- 3846 visitas
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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The secondary sector: industry and construction
EduBook Organización
- 3541 visitas
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
EduBook Organización
- 3296 visitas
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…