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The functions of the nervous centres
EduBook Organización
- 2096 visitas
The cerebrum The cerebrum is the most important nervous centre. It contains over 10 billion neurons and represents 80% of the volume of the brain. The outer surface, which is 1.5 to 4 millimetres thick,…
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Responde as seguintes preguntas:
EduBook Organización
- 2100 visitas
Que dúas clases de materiais existen? Como se miden a lonxitude, a masa e o volume de diversos obxectos? Que significa reciclar? Que son os minerais? Indica algunhas utilidades que teñan os minerais.…
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Water vaporisation and evaporation
EduBook Organización
- 1780 visitas
Vaporisation, or boiling, only occurs at the boiling point (100°C). The whole volume of water that is boiling vaporises. Evaporation occurs when only the particles on the surface of the liquid change…
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Unit 1: Matter and Materials
EduBook Organización
- 1738 visitas
Alloy (n): a homogeneous mixture made up of metals or of a metal and a non-metal. atom (n): the smallest unit of matter, composed of particles called protons, neutrons and electrons. boiling point (n):…
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Look. Water and ice
EduBook Organización
- 1653 visitas
Look at these two beakers: one contains water and the other contains ice. What physical states of water can you see in the two images? How did the liquid water change into its solid state? Look at the…
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Para saberes máis
EduBook Organización
- 1495 visitas
Ferver e evaporar son dúas cousas distintas. Aínda que os dous procesos converten en vapor un líquido, prodúcense de forma diferente. Vexamos o caso da auga: A auga ferve cando acada a temperatura…
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EduBook Organización
- 1361 visitas
Boiling and evaporation are different processes. Both change a liquid to a gas, but happen in different ways. Water boils at 100°C. During boiling, the total volume of liquid water is changing to water…
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Climate Trackers: Capercaillie
EducaMadrid Organización
- 5622 visitas
At present, the Pyrenees mountain chain comprises approximately thirty glaciers. A glacier is made up of an enormous quantity of frozen water that remains all year long and is regenerated by the…
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