视频选集 1-太阳系 Exploring Our Solar System Planets 2-中国长城 The History of the Great Wall of China for Kids - FreeSchool 3-鲨鱼 All About Sharks for Children Animal Videos for Kids 4-世界上跑得最快的10种动物 Top 10 Fastest Animals in the World Fastest Runners 5-月球 Phases of the Moon Astronomy and Space for Kids - FreeSchool 6-斑马 Zebras for Kids Learn all About Zebras - FreeSchool 7-河马 All About Hippos for Kids Hippopotamus for Children 8-海洋 Exploring the Coral Reef Learn about Oceans for Kids 9-物质状态(固体,液体,气体) States of Matter for Kids (Solid, Liquid, Gas) 10-地形和水体 Exploring Landforms and Bodies of Water for Kids 11-长颈鹿 Giraffes for Kids Learn about Giraffes - FreeSchool 12-企鹅 All About Penguins for Kids Penguins of the World for 13-儿童英语语法 All About Nouns English Grammar for Kids - FreeSchool 14-老虎 Tigers for Kids Learn All About Tigers - FreeSchool 15-大象 Elephants for Children Learn All About Elephants - FreeSchool 16-地球天文学与太空 The Planet Earth Astronomy and Space for Kids - FreeSchool 17-太阳 All About the Sun for Kids Astronomy and Space for Children 18-动物分类 Animal Classification for Children Classifying Vertebrates 19-鸟类 All About Birds for Children Animal Learning for Kids - FreeSchool 20-火山 All About Volcanoes for Children Introduction to Volcanoes for Kids 21-岩石类型 Types of Rocks and the Rock Cycle Igneous, Sedimentary, Metamorphic 22-北极动物和气候 Exploring the Arctic for Kids Arctic Animals and Climates 23-马丁·路德·金博士 为孩子们写的传记 Dr. Martin Luther King, Jr Biography for Children 24-猫头鹰 All About Owls for Kids Backyard Bird Series - FreeSchool 25-亚伯拉罕·林肯为 为孩子们写的传记——25-Biography of Abraham Lincoln for Kids Meet the 26-海豚 All About Dolphins for Kids Dolphins for Children - FreeSchool 27-食物链 Food Chains for Kids Food Webs, the Circle of Life, and the Flow of 28-昆虫 All About Insects for Children Bees, Butterflies, Ladybugs 29-生物群落海洋,山脉,草原,雨林 30-Biomes of the World for Children Oceans, Mountains 30-乔治·华盛顿 为孩子们写的传记 Biography of George Washington for Kids Meet 31-对称 Intro to Symmetry All About Symmetry for Kids - FreeSchool 32-科学和工程 Simple Machines for Kids Science and Engineering for Children 33-熊猫 All About Pandas for Kids - FreeSchool 34-科学方法的步骤 The Steps of the Scientific Method for Kids 35-猎豹 Cheetahs for Kids Learn All About Cheetahs - FreeSchool 36-自由女神像 The Statue of Liberty for Kids Famous World Landmarks 37-犀牛 All About Rhinos for Kids Rhinoceros for Children - FreeSchool 38-矮行星 Guide to Dwarf Planets Ceres, Pluto, Eris, Haumea and Makemake 39-大本钟 Guide to Dw40-Big Ben for Kids Famous World Landmarks for Children 40-云 All About Clouds for Kids Types and Names of Clouds - FreeSchool 41-生态系统 Understanding Ecosystems for Kids Producers, Consumers 42-水母 All About Jellyfish for Kids Jellyfish for Children - FreeSchool 43-物理变化和化学变化 Physical and Chemical Changes Chemistry for Kids - FreeSchool 44-蛇 All About Snakes for Kids Learn about Snakes for Children - FreeSchool 45-世界上最快的5种鸟类 Top 5 Fastest Birds in the World Fastest Animals on Earth 46-什么是植物 What is a Plant All About Plants for Kids - FreeSchool 47-物理力学定律 Newton's 3 Laws of Motion for Kids Three Physical Laws 48-什么是细胞 All About Cells and Cell Structure Parts of the Cell for Kids 49-银河系 The Milky Way for Children, Galaxies and Space Astronomy for Kids 50-蜕变 毛毛虫到蝴蝶 Metamorphosis Caterpillar to Butterfly for Children - FreeSchool 51-狮子 All About Lions for Children Animal Safari Videos for Kids - FreeSchool 52-月球 All About the Moon Astronomy and Space for Kids - FreeSchool 53-泰姬陵 The Story of the Taj Mahal for Kids Famous World Landmarks 54-种你从未听说过的稀有野生猫科生物 Rare Wild Cats You've Never Heard Of 55-鳄鱼 All About Crocodiles for Kids Crocodiles of the World for Children 56-生物和非生物 Living and Nonliving Things for Kids Life Science for Children 57-熊 All About Bears for Kids Bears for Children - FreeSchool 58-秃鹰 All About Bald Eagles for Kids Animal Videos for Children 59-光和颜色 The Science of Light and Color for Kids Rainbows and the 60-十大最重的陆地哺乳动物 Top 10 Heaviest Land Mammals on Earth Creature 61-冥王星和矮行星 All About Pluto and Dwarf Planets for Kids Astronomy 62-鲸鲨 All About Whale Sharks for Children Whale Shark video for Kids 63-埃及金字塔 The Pyramids of Egypt and the Giza Plateau Ancient Egyptian 64-文明史 The History of Civilization for Kids How Civilization Began 65-土星 All About Saturn for Children Astronomy and Space for Kids - FreeSchool 66-考拉 All About Koalas for Kids Koalas for Children - FreeSchool 67-北极熊 All About Polar Bears for Kids Polar Bears for Children - FreeSchool 68-形容词 英语语法 All About Adjectives English Grammar for Kids - FreeSchool 69-图坦卡蒙和他的孩子们 儿童传记 King Tut and His Treasures for Kids 70-奥运会 All About the Olympics for Kids - The History and Symbols 71-木星 All About Jupiter for Children Astronomy and Space for Kids - FreeSchool 72-爬行动物 All About Reptiles What Makes it a Reptile - FreeSchool 73-美国革命战争 The American Revolutionary War for Kids Learn About 74-五月花号的故事 The Story of the Mayflower and the First Thanksgiving 75-水星 The Planet Mercury Astronomy and Space for Kids 76-周长 Intro to Perimeter for Kids How to Find the Perimeter of Polygons 77-哺乳动物 All About Mammals for Children 78-冰川 All About Glaciers for Kids How Glaciers Form and Erode to Create 79-什么是星云 What is a Nebula Astronomy and Space for Kids - FreeSchool 80-什么是城堡 Castles for Kids What is a Castle Medieval History for Children 81-列奥纳多·达·芬奇 儿童传记 Leonardo da Vinci for Children Biography for Kids 82-拉什莫尔山 儿童历史 The History of Mount Rushmore for Kids Famous Landmarks for 83-埃菲尔铁塔 The Eiffel Tower for Kids Famous World Landmarks for Children 84-分数的介绍 Intro to Fractions All About Fractions for Kids 85-海王星 All About Neptune for Kids Astronomy and Space for Children - FreeSchool 86-金星 The Planet Venus Astronomy and Space for Kids - FreeSchool 87-少儿英语语法 Intro to Punctuation for Kids English Grammar for Children 88-巨石阵的历史 The History of Stonehenge for Kids Stonehenge for Children 89-亚历山大格雷厄姆贝尔 儿童传记 Biography of Alexander Graham Bell for Children 90-星条旗的历史 The History of the Star-Spangled Banner for Kids Francis 91-什么是角度 Intro to Angles for Kids Understanding Angles for Children 92-下雪 96-What Makes it Snow Winter Precipitation for Kids 93-迷人的灭绝动物 Fascinating Extinct Animals Creature Countdown 94-阿波罗11号和第一批登上月球的人的故事 98-The Story of Apollo 11 and the First Men on the Moon 95-莫奈 儿童传记 Biography of Claude Monet Famous Artists for Children - FreeSchool 96-火星 All About Mars Astronomy and Space for Kids - FreeSchool