Recursos educativos therefore página 3

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Energy transfer: heat
EduBook Organización
1851 visitas
1.1. Heat The particles that make up matter store energy: Heat or thermal energy is the energy that is transferred from hot bodies to cold bodies (figure 1). All the particles that make up bodies have…
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Healthy Workplaces. Good for you. Good for business
EducaMadrid Organización
2778 visitas
Each year EU-wide, 167,000 deaths are attributable to work-related accidents/illnesses, and the number of occupational accidents is estimated at 7 million. Apart from tragic individual consequences, the…
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Effects of heat on bodies (II)
EduBook Organización
1704 visitas
4.1. Expansion The term expansion refers to the increase in a substance's volume. This causes a reduction in the substance's density. The opposite effect is called contraction. The particles…
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The nature of light
EduBook Organización
1673 visitas
2.1. What is light? Light has an undulatory nature; this means it is made up of waves. Visible light (that can be seen by the human eye) belongs to a larger group of waves called electromagnetic waves.…
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Energy consumption
EduBook Organización
1293 visitas
7.1. Sustainable energy consumption Three quarters of all the energy produced is consumed by only 15 % of the Earth's population. Therefore, it is vital: To share out energy resources among all the…
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Discussion - The text and beyond
EduBook Organización
1321 visitas
Dorian Gray and Alan Campbell had had a close relationship that ended very badly: Wilde doesn’t say why, and it is therefore left to our imagination. In your opinion, what happened to end their…
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Weather
Virtualware Organización
2 lo usan

4244 visitas
One of the most complicated tasks when we are preparing a trip is packing our suitcase. It must be as light as possible, but at the same time we have to put all the clothes we need inside. Therefore, a…
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The Earth's satellite: the Moon
EduBook Organización
1415 visitas
3.1. General characteristics of the moon The Moon is the only natural satellite of the Earth. It is 49 times smaller than our planet. As the Moon does not have an atmosphere, the Sun's rays and the…
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