Magnets Lesson 81 of the world course of Mova's primary school: 15 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: the lesson at school .
0 A magnet pulls things made of iron, steel, nickel and cobalt, even without touching them; most other materials, such as wood, plastic, glass, paper, copper and aluminium, are not attracted. 1 Every magnet has two ends called poles, a north pole and a south pole, where the pull is strongest; two unlike poles attract each other, and two like poles push each other apart. 2 The force of a magnet can pass through paper, water, wood and even your hand, and it gets weaker the further away you go; the space around a magnet where it pulls is called its magnetic field. 3 The Earth itself acts like a giant magnet, so a compass needle, which is a small magnet free to turn, always points north and south and helps travellers find their way. 4 Try it: hold a paper clip under a table and move a magnet on top — the clip follows the magnet, because the magnetic force passes right through the wood. 5 Magnets attract iron, steel, nickel and cobalt. 6 Copper, aluminium, gold and silver are metals that magnets do not attract. 8 Like poles repel each other and unlike poles attract. 9 The pull of a magnet is strongest at its poles. 10 The pull of a magnet gets weaker with distance. 11 Magnetic force can pass through paper, wood, water and glass. 12 The Earth behaves like a giant magnet. 13 A compass needle is a small magnet that lines up north and south. 14 If you cut a magnet in half, each piece becomes a magnet with its own two poles. 15 Electromagnets are made with electricity and can be switched on and off. ← previous Farms and where our food comes fromnext → Heat and temperature: how things warm and cool↑ back to World This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/world/81-magnets/