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Activities - Work
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People need to work to live. We receive money for the work we do so that we can buy the things we need. Jobs help society to function well. There are many types of jobs. Some people produce food or raw…
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End-of-unit activities - The skeletal-muscular system
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Our skeleton is made up of bones. These are living organs in our body that grow at the same rate as we grow. If they break, they can mend themselves. Some bones protect important organs in our body,…
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Reading
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The Winged Monkeys find the Lion and free him. He is happy now. They find the Scarecrow’s clothes and put some straw in them. The Scarecrow laughs and says, “Thank you!” Then the Winged Monkeys…
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Diet and food
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The food pyramid We divide foods into five groups depending on the nutrients they contain. You can see these five groups in the food pyramid. You can use these groups to help you decide which foods to…
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What happens next? (II) - Virginia Meets the Ghost
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Later in Part Four the Ghost and Virginia meet. Which do you think is most probable – 1, 2 or 3? The Ghost and Virginia get angry and argue about which is better; America or England. The Ghost…
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Introduction - The representation of the Earth: maps
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In the past, cartography (or map making) was a very slow process. It involved observation and complex calculations and drawings. Modern maps are made using aerial photos and images from satellites…
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Introduction - Machines
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We use machines in many different ways. Machines help to make our work easier. We use them every day. We use different machines for different things. What we use a machine for is called its function. We…
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Learn. Measure your heart and breathing rates
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What do we do? Our circulatory and respiratory systems are constantly adapting to our body's needs. You can test this with the following experiment. While you are resting, check your pulse and count…
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Amphibians and reptiles
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Amphibians Amphibians are vertebrates that live part of their lives in fresh water and part on land. Characteristics of amphibians The skin of amphibians is moist and slimy. It has no protective…
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Check. Light and colours
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Remember what you have studied in this section and answer the questions: What are the three primary colours of light? Why are they called this? What are the three primary colours of pigments? What do we…
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