Recursos educativos which página 270

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Forces
EduBook Organización
2814 visitas
3.1. What are forces? Forces are the causes of changes in the velocity and direction of objects and also in the shape of objects. The SI unit of force is the newton (N). 3.2. Representing forces To…
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What is sound?
Maria Pallarés Docente
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What is sound? Sound is a form of energy, just like electricity and light. Sound is made when air molecules vibrate and move in a pattern called waves, or sound waves. Think of when you clap your hands,…
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True / false. The continental landscape
EduBook Organización
2760 visitas
Which of these statements about the continental landscape are true or false?: The abundance of coniferous forest is thanks to the abundance of rainfall. Temperatures are high because of the distance…
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Urban activities: artisan workshops and trade
EduBook Organización
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2.1. Guilds Medieval cities became production centres of artisan products. Artisans that made the same products lived on the same street, which was named after them (tanners, weavers, etc.). Artisans…
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Reflect. Prepare for a trip
EduBook Organización
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Imagine that next summer you are taking a long holiday to visit these places: Iquitos (Peru), Auckland (New Zealand) and Crete (Greece): Make a list of essential items that you will need in each place.…
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Restriction Digestion and Gel Electrophoresis of DNA
Tiching explorer Organización
5173 visitas
In sub-cloning biochemists take a gene from a genome and paste it into a plasmid for use in the lab. Restriction endonucleases are used to cut DNA at specific sequences. Electrophoresis is a process in…
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Complete. Atmospheric conditions
EduBook Organización
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Choose the best word to complete the following sentences: is the weight of the air on the planet's surface. Atmospheric pressure depends on and . Warm air weighs less and is less dense, which makes…
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Self-evaluation 3 - The Earth's relief
EduBook Organización
2645 visitas
Which concepts do the following definitions refer to?: The part of a volcano made of the materials it expels. Strong tremors originating inside the Earth that can cause the crust to rupture. An…
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Think about it. Energy transfer
EduBook Organización
2625 visitas
Remember what you have studied in this section and answer the questions: Which has more internal energy: a hot body or a cold body? Explain why. With a classmate, discuss why we can start a fire if we…
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Unit 14: The world today
EduBook Organización
2515 visitas
Armed conflict (n): fighting between armies in which weapons are used; known as war. Arab Spring (n): a series of demonstrations, protests, riots and civil wars which occurred in several Arab countries…
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