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The geosphere
EduBook Organización
1621 visitas
What is the geosphere made of? The geosphere is made up of rocks. Rocks are natural materials. They are usually hard and dense, and are made up of chemical substances called minerals. For example,…
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Think about it. Sound
EduBook Organización
1588 visitas
Remember what you have studied in this section and answer the questions: Why do we say that sound transports energy? What kind of energy is it? If we put our ear close to a railway track, we know that a…
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Learn. Write a report using maps
EduBook Organización
1598 visitas
A report is a written explanation of a topic that has been studied. Reports usually have the following characteristics: The aspects of the topic being analysed are clear. For example, this report is…
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Did you know... The fastest train in the world
EduBook Organización
1583 visitas
The fastest train in the world is in China and started operations in 2011. The train has reached a speed of 486.1 km/hour, but averages 300 km/hour on regular journeys. The journey time on the…
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Learn... Separation of mixtures
EduBook Organización
1565 visitas
There are different techniques to separate the components of a mixture. In addition to evaporation, which we already know, there is: Filtration Filtration is used to separate a liquid from an insoluble…
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True or false. Measurement
EduBook Organización
1540 visitas
Are the following sentences true or false? Volume is an example of magnitude. To measure a magnitude, we compare it with another magnitude. To measure something we have to establish the magnitude of an…
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Mission:Explore - Welcome
V&V Books Vicens Vives Organización
1516 visitas
Mission Explore is an adventure trail which allows you to choose what type of specimen to look for. The player travels to the island of Regaloam to locate a specimen. Once an item has been found it then…
- De 15 a 30 minutos
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The rural problem
EduBook Organización
1 lo usan

1291 visitas
There is no doubt that, as I said, one of the greatest ills we suffer is the unequal distribution of land and that most of it is in the hands of the few (...). That the excessive extension of this…
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The "Indignados"
EduBook Organización
1442 visitas
Society is suffering from a generalised amnesia, and does not seem to be worried about the fact our Planet is heading for an environmental disaster; this only highlights the truth that political leaders…
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Experiment. Stable and resistant structures
EduBook Organización
1429 visitas
It is important to use the right material to make pillars and beams more resistant. It is also important to consider their geometric shape and position. Do this experiment to check the resistance of an…
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