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Properties of air: does air have mass?
Maria Pallarés Docente
- 2 lo usan
- 3703 visitas
In this experiment one balloon has more air under more pressure than the other. If air has mass then the bigger balloon should be more attracted to the earth than the smaller balloon. Watch the video to…
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Talk about it. Motion and forces
EduBook Organización
- 2990 visitas
Look at the pictures and answer the questions. Look at the train and plane in the photos. What allows us to determine their trajectories? What quantity refers to the distance travelled by a moving…
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Adapting to the habitat
EduBook Organización
- 2945 visitas
There are many different types of habitat on the Earth. They include seas, forests, savannahs, lakes and deserts. But living things cannot live in every type of habitat. Animals and plants have certain…
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Self-evaluation 1 - Rivers and seas
EduBook Organización
- 2942 visitas
Complete the text with the missing words: The is the collective name for all of the water on Earth. Water can be found in a state (ice), a state (agua) and a state (water vapour). Some 97.21% of all the…
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Self-evaluation 9 - Weather and climate
EduBook Organización
- 2931 visitas
Choose the best answer to each of the questions: What is the name of the imaginary lines on a weather map that connect points of the same temperature? Where are the highest average temperatures on the…
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Match each feature of weather to one or more of the descriptions
EduBook Organización
- 2895 visitas
Match each feature of weather to one or more of the descriptions: The water that falls from the clouds to the Earth. → It tells us how hot or cold the air is. → The movement of air. → …
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Complete. Extracting minerals
EduBook Organización
- 2861 visitas
Complete the text with the missing words: concentrated – scarce – passages – geológico – deposits – opencast – mines – underground Some minerals of economic interest are . Sometimes they…
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Investigate. Deforestation
EduBook Organización
- 2842 visitas
Deforestation is clearing the Earth's forests on a very large scale. Logging companies, which serve the world's wood and paper industries, are responsible for the felling of many trees each…
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Climate change
Proyecto Agrega Organización
- 1 lo usan
- 5067 visitas
In this didactic sequence we study the meteorological phenomenon which threatens the lives of thousands of living things. We find out the causes of climate change and its possible consequences for the…
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Gravity and Orbits
Tiching explorer Organización
- 4889 visitas
In this simulation students can move the Sun, Earth, Moon and space station to see how it affects their gravitational forces and orbital paths. They can visualize and alter the sizes and distances…
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