homeschoolisfun (50)in #cryptocurrency • 7 years ago • None.-..-.homeschoolisfun (50)in #homeschool • 7 years ago • None#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…homeschoolisfun (50)in #homeschool • 7 years ago • None#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…homeschoolisfun (50)in #homeschool • 7 years ago • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#11 - Going underground 去地下1. Humans have climbed the world's highest mountains - but many underground caves are unexplored. Caves are…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…homeschoolisfun (50)in #homeschool • 7 years agosteemCreated with Sketch. • None#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…
