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Think about it. Matter: atoms, molecules and crystals
EduBook Organización
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Remember what you have studied in this section and answer the questions: Draw a spider diagram showing the links between atom, molecule and crystal. Describe your diagram to a classmate. Are iron atoms…
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The Internet and the World Wide Web
EduBook Organización
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Computer networks Computers can work independently, like the computers in many homes, or they can be connected in a network. A network is a group of interconnected computers in which people share…
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Final Autoevaluation 4.01 - Animal reproduction
EduBook Organización
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Answer true or false. Only birds are oviparous. Ovoviviparous animals reproduce through internal fertilisation. We talk about incomplete metamorphosis when there is a chrysalis stage. The mating season…
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Learn. Some optical instruments - Waves. Light and sound
EduBook Organización
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Some optical instruments Most optical instruments, like microscopes or telescopes, consist of lenses, mirrors and prisms. Lenses Lenses are disc-shaped, and one or both sides are curved. They are made…
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Complete. Agricultural landscapes: characteristics
EduBook Organización
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Complete the sentences with the missing words: Natural landscapes have been in order to obtain from nature. The main elements that characterise agricultural landscapes are the different types of , the…
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The physical properties of matter
EduBook Organización
- 1 lo usan
- 3014 visitas
Physical properties refer to the state of matter (solid, liquid, gas); its density; its behaviour when broken, when subjected to heat or electricity; the temperature at which it changes state, etc. 2.1.…
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Introduction - Interaction, adaptation and coordination in animals and p...
EduBook Organización
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The functions of interaction coordinate an organism's vital functions. They help individuals interact with and adapt to their environment. Living things constantly receive a large amount of…
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Cube creator
Tiching explorer Organización
- 1 lo usan
- 4837 visitas
Set of four story cube templates designed to help us improve our writing skills. It can help us to write biographies, mystery stories, key elements of a story, and free planning of our story. They…
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Complete these sentences
EduBook Organización
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Complete these sentences: Wood, coal and oil are sources of heat. Light cannot pass through objects. We use to measure temperature. When we heat an object, it . Water is the only substance which expands…
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Selectividad: colección de problemas resueltos.
Tiching explorer Organización
- 6680 visitas
This webpage by María Martín contains upper-intermediate / FCE English exercises of different kinds: true/false, writings and compositions, finding synonyms, sentence completion, use of English. Since…
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