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Check. Energy transfer
EduBook Organización
- 4040 visitas
Remember what you have studied in this section and answer the questions: What is heat? When a body absorbs thermal energy, what does it use it for? What is a heat source? With a classmate, give examples…
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End-of-unit activities - The nervous system
EduBook Organización
- 4003 visitas
Right now, you are reading these words and you understand them. If you see food when you are hungry, your mouth starts to water. If you burn your hand, you move it away immediately. You automatically do…
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Reproduction in mammals
EduBook Organización
- 3760 visitas
3.1. Reproduction in mammals Mammals reproduce by internal fertilisation. They are viviparous. Males have a penis that they use to introduce sperm into the female's body. Fertilisation then takes…
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End-of-unit evaluation - The nervous system
EduBook Organización
- 3619 visitas
Right now, you are reading these words and you understand them. If you see food when you are hungry, your mouth starts to water. If you burn your hand, you move it away immediately. You automatically do…
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Introduction - The nervous system
EduBook Organización
- 3460 visitas
Right now, you are reading these words and you understand them. If you see food when you are hungry, your mouth starts to water. If you burn your hand, you move it away immediately. You automatically do…
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Breathing (II)
EduBook Organización
- 3439 visitas
Exchange of gases in our lungs Our body exchanges oxygen for carbon dioxide inside the pulmonary alveoli. Each alveolus is connected to a network of very small blood vessels, called capillaries. Oxygen…
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Earthquakes
EduBook Organización
- 3229 visitas
3.1. What is an earthquake? An earthquake is when the ground vibrates or shakes. It can last from a few seconds to a few minutes. The focus of an earthquake, also called the hypocentre, is the point…
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Complete. Parts of a cell
EduBook Organización
- 3194 visitas
Complete the following text about cells with the correct words: cytoplasm shapes nucleus cell membrane cells cytoplasm Cells have many different : round, long, square etc. Although they have different…
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True / False. Cellular respiration
EduBook Organización
- 3177 visitas
Are these sentences true or false? Our body exchanges oxygen for carbon dioxide inside the pulmonary arteries. The pulmonary alveoli are connected to a network of very small blood vessels called…
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Learn. Look at parts of an egg
EduBook Organización
- 3023 visitas
What do we need? A hard boiled egg Tweezers A chopping board A knife A teaspoon What do we do? We are going to investigate what is inside a chicken egg. Birds' eggs are larger and more complex than…
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