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- Actividades en la nieve
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Final Autoevaluation 1.01 - Plant nutrition
EduBook Organización
- 1848 visitas
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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Check. Volcanoes
EduBook Organización
- 1850 visitas
Remember what you have studied in this section and answer the questions: Ask a classmate to define the following: magma, lava flows, pyroclasts, lapilli, ash, lava dome: In which areas of the Earth are…
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The Indonesian earthquake
EduBook Organización
- 1851 visitas
On December 26, 2004, there was an earthquake in the Indian Ocean which measured 9.2 on the Richter scale. It caused a series of tsunamis which affected the coasts of Indonesia, Thailand, Sri Lanka,…
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Final Autoevaluation T07 08 - Energy inside the Earth
EduBook Organización
- 1853 visitas
Indicate which concepts refer the following definitions: The forces that cause mountain chains to form are... Mountain chains are formed over ... The Andes mountain chain was formed by... A depression…
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Calculate. Pressure
EduBook Organización
- 1853 visitas
Calculate the pressure exerted on snow by the feet of a man with a mass of 81 kg if you know that the total surface area of the soles of his boots is 0,6 m2? Note: g = 9,8 m/s2. P = Pa
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Analyse. Learn to calculate and work with graphs
EduBook Organización
- 1852 visitas
Graphs help us to understand the relationships between the magnitudes represented on them. A very common way of drawing a graph is to give magnitudes to the quantities we are studying and transfer them…
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Check. The reflection of sound
EduBook Organización
- 1856 visitas
Remember what you have studied in this section and answer the questions: What is the reflection of sound? Explain an echo. Why is a minimum distance needed to hear it?
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Final Autoevaluation T12 06 - Waves. Light and sound
EduBook Organización
- 1858 visitas
A train that is 2km away whistles. How long does the sound take to reach our ears through the air? And through a steel railway track? t = segundos.
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The return to absolutism
EduBook Organización
- 1851 visitas
I do not only lack allegiance to the Constitution and any decree of the Cortes (...), but I also declare the Constitution and such decrees void and without value, now and at any time, as if such acts…
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The great colonial empires
EduBook Organización
- 1852 visitas
3.1. Dividing up the world The major European powers gained control of almost all of Africa and Asia, most of the islands in the Pacific Ocean and Oceania, and large parts of North America. Africa was…
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