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Compare the photos
EduBook Organización
- 2097 visitas
Look carefully at these two photos and answer the questions: In which of the two species has internal fertilisation taken place? Which of the two species is viviparous? ¿Cuál de las dos especies…
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Classify. Reflex or voluntary
EduBook Organización
- 2091 visitas
Classify the following actions as either reflex or voluntary: Coughing Reading Salivating Walking Bending over to pick up a coin Removing the hand when touching something hot
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Matter is recycled and energy is lost in ecosystems
EduBook Organización
- 2092 visitas
When living things die, decomposers use the organic material to obtain energy. In doing this, they turn the organic biomolecules into inorganic material again. The action of decomposers closes the cycle…
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Learn. Risks from volcanoes - Energy inside the Earth
EduBook Organización
- 2095 visitas
Volcanic eruptions can cause loss of human life and material damage. This can be because of the material ejected from the volcano or as a consequence of the seismic activity which usually accompanies…
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Learn. Risks from earthquakes - Energy inside the Earth
EduBook Organización
- 2099 visitas
Earthquakes occur frequently only in certain regions, for example around the Pacific coastline and along a line from the south of Spain to the Himalayas. These areas coincide with fault lines and the…
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Internal geodynamics and surface relief
EduBook Organización
- 2098 visitas
The forces inside the Earth cause mountain chains to form They also deform rocks and form folds, or break rocks and cause geological faults or joints. 6.1. Mountain ranges Mountain ranges are chains of…
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Calculate. Distance travelled
EduBook Organización
- 2094 visitas
Determines the distance travelled by an object that moves at a constant speed of 2 m / s for 1 hour. d = m
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Energy transfer: heat
EduBook Organización
- 2097 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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Final Autoevaluation T12 06 - Waves. Light and sound
EduBook Organización
- 2102 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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Look. A 19th century textile factory
EduBook Organización
- 2101 visitas
Look at the illustration. What type of scene does it show? Who or what is the protagonist? What are the women doing?