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Recursos educativos
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Effects of heat on bodies (II)
EduBook Organización
- 2122 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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Tectonic plates
EduBook Organización
- 2076 visitas
The rocks that make up the geosphere are mainly solid, but they can change shape and move very slowly. These movements take place in the tectonic plates, which are on the outer surface of the geosphere.…
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Pregnancy and birth
EduBook Organización
- 1988 visitas
The start of the pregnancy During sexual intercourse, a man deposits millions of sperm into a woman's vagina. The sperm have tails, which help them to move. They travel from the vagina to the uterus…
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Understanding the text 01 (KET)
EduBook Organización
- 1972 visitas
Read the paragraph below and choose the best word for each space. The Chinese New Year parade is an important event in San Francisco. There beautiful costumes and colorful lanterns. There is also of…
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Final self-evaluation 1.6 - Matter and Materials
EduBook Organización
- 1927 visitas
Complete the following sentences with the missing words: A group of atoms is called a . move around the nucleus of an atom. are made up of two or more different chemical elements. The formula for is…
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Small celestial bodies
EduBook Organización
- 1825 visitas
Comets are made up of ice, dust and light rocks. When comets move close to the Sun, some of the ice evaporates and a tail forms. The tail is made up of dust particles. Asteroids are rocky bodies. Most…
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Stonehenge - Exit Test
EduBook Organización
- 1842 visitas
Match the sentences on Stonehenge with the correct ending. Stonehenge is a very old monument Stonehenge was built Some people believe that Stonehenge Other people think The stones are very big and very…
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Final self-evaluation 02 - Climate and vegetation in Spain
EduBook Organización
- 1712 visitas
Complete the sentences with the correct words: altitude latitude decreases direct hotter temperature less moderates At the Equator, the Sun's rays hit the Earth at a angle. This is why it is near…
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Halley's comet
EduBook Organización
- 1585 visitas
In the 18th century, Isaac Newton stated that comets, just like planets, move around the Sun. He stated that the orbits of comets were elliptical and much more eccentric than the orbits of planets.…
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