BlogHide Resteemshomeschoolisfun (50)in cryptocurrency • 7 years ago.-..-.homeschoolisfun (50)in homeschool • 7 years ago#8 - Mysterious magnets 神秘的磁铁1. Without magnets there would be no electric motors, computers or loud speakers. Magnetism is an invisible force to do with atoms - tiny particles that make up everything. Atoms are made of even…homeschoolisfun (50)in homeschool • 7 years ago#7 - The power of lasers 激光的力量1. Laser light is a special kind of light. Like ordinary light, it is made of waves, but it has three main differences. Ordinary white light is a mixture of colors, while laser light is one pure…homeschoolisfun (50)in homeschool • 7 years ago#6 - Look out - light's about!1. Almost everything you do depends on light and the science of light, which is called optics. Light is a form of energy that you see. Light waves are made of electricity and magnetism - and they…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#22 - Twisting tornadoes 扭转龙卷风1. Tornadoes are also called twisters. A tornado is an incredibly powerful windstorm that twists around in a swirling 'vortex' shape. It forms a narrow funnel or tube, stretching from the…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#21 - Extreme snow and ice 极端的雪和冰1. An ice storm isn't stormy - but it is dangerous. Cold rain falls onto freezing cold surfaces. The rain freezes solid, forming a thick layer of ice on the ground, trees, and other objects.…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#20 - Hammered by hail 用冰雹敲打1. Hail doesn't happen often - but it can be one of the scariest kinds of weather. When it hails, balls of card, heavy ice fall out of the sky. Hailstones are usually small, about the size of…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#19 - Lightning strikes 雷击1. Lightning is a giant spark of electricity. It happens when tiny droplets of water and ice swirl around inside a storm cloud. This makes the cloud develop a strong electrical charge.…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#18 - Raining cats and dogs 下着倾盆大雨1. It may seem like bad weather, but we need rain. Rain happens because the Sun's heat makes water in the sea evaporate. It turns into a gas and rises into the air and forms clouds. The clouds…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#17 - Amazing Oceans 惊人的海洋The oceans cover about 361 million square kilometers and they are all connected. The average depth of the ocean is 3750 meters. Over 90 percent of the Earth's species (types) of living things live…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#16 - Glaciers and Icebergs 冰川和冰山1. About two percent of the water in the world is permanently frozen as ice. The ice is found at the chilly polar regions, and on high mountains where the air is freezing cold. On steep slopes…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#15 - The ends of the Earth 地球的尽头1. The Earth is round, but it has two 'ends' - the North Pole and the South Pole. The Earth is constantly spinning around an imaginary line called the axis. At the ends of this axis are the…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#14 - Dry Deserts 干沙漠1. Deserts occur in places where it's hard for rain to reach. Most rain comes from clouds that form over the sea and blow onto the land. If there's a big mountain range, the clouds never reach…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#13 - Terrifying tsunamis 可怕的海啸1. A tsunami is a giant wave or series of waves. Tsunamis form when a large amount of water in a sea or lake is moved suddenly. This sets up a circular wave, a bit like the ripples you see when…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#12 - Extreme earthquakes 极端地震1. An earthquake happens when the Earth's crust moves suddenly. The crust trembles, cracks, or lurches up and down. Earthquakes can be disastrous. They make houses fall down, tear roads apart…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#11 - Going underground 去地下1. Humans have climbed the world's highest mountains - but many underground caves are unexplored. Caves are usually formed by water flowing through cracks underground. The water slowly…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#10 - Record-breaking lakes 破纪录的湖泊1. The Caspian Sea in central Asia is actually the world's biggest lake! It covers 378,000 square kilometers. It isn't connected to true seas and oceans, but because its so big, and is salty…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#9 - Rivers and waterfalls 河流和瀑布1. The Earth is laced with thousands of rivers. Rivers are channels of water that flow towards the sea. They allow the rain that falls on the land to drain away. Rivers also provide people and…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#8 - Hot springs and fountains 温泉和喷泉1. There are natural hot baths and showers all over the world. You might think water outdoors is cold, but in some places, water meets hot rock under the ground and gets heated up. It sometimes…homeschoolisfun (50)in homeschool • 7 years agosteemCreated with Sketch.#7 - Violent Volcanos 暴力火山1. A volcano is a place where hot, liquid rock (magma) bursts out of the Earth. At the Earth's surface, magma is called lava. Red-hot lava can be seen flowing or shooting out of a volcano.…
