What did dinosaurs evolve from? Earthquakes rumble as these plates snag and slip past each other. What was the only type of life on the planet for hundreds of millions of years? Like Venus and Mars, Earth has mountains, valleys, and volcanoes. The show tells the story of Earth, and life on it, with the help of host Will Smith, eight astronaut co-hosts, the intense visual storytelling style of producer Darren Aronofsky, and incredible locations that range from a raging pool of lava in the Democratic Republic of Congo to the International Space Station, whipping by above us at 17,000 miles per hour 27,500 kilometers per hour. Remember, children use this website. We take a hard-nosed attitude toward quality.
Hadfield co-hosts a later episode that looks at the challenges of colonizing another planet. Earth's crust and upper mantle are divided into massive plates that grind against each other in slow motion. With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only one known for sure to have liquid water on its surface. Take a trip through and beyond our planet, revealing the twists of fate that have allowed life to thrive on Earth. For instance, some scientists now suggest there. WatchKnowLearn ratings are intentionally harsher than what you might find on YouTube, for example. How did Native Americans get to America? What was special about Tktaalik? Explore every aspect of our world; learn how water first arrived on Earth, discover the vital role oxygen played as life forms began to evolve, and find out how land mammals evolved into dinosaurs and other giant beasts, before becoming extinct 65 million years ago.
But unlike its rocky siblings, almost 70 percent of Earth's surface is covered in oceans of liquid water that average 2. Do not overuse this, please; it is not the standard rating for decent work, as it is elsewhere. Use the classroom resources below to explore Earth's unique properties and processes. The Earth might seem solid beneath our feet but five billion years ago there was no sign of the planet we call home. She has been underground at three of the largest particle accelerators in the world. Life on Earth is possible because our planet is protected from solar tempests and harmful rays by a magnetic field and the ozone layer.
Their goal: To boost the number of Sumatran rhino births every year. In January, the participating astronauts and some of the show's creators talked to reporters about how that decision to use space travelers as the main storytellers was made, and how it shaped the series. One Strange Rock is a thrilling journey exploring the fragility and wonder of our planet, one of the most peculiar, unique places in the universe. Ninety percent of Earth's atmosphere. This documentary combines archaeological and geological evidence with tales passed down through generations, uncovering a dramatic history of cannibals, vast stone cities, human sacrifice, and the epic voyagers who colonised the Pacific centuries before Columbus made it to America.
Then students compare and contrast weather conditions for planets in our solar system. At the planet's heart lies the inner core, a solid sphere of iron and nickel that's 759 miles wide and as hot as 9,800 degrees Fahrenheit. Instead there was only a new star and a cloud of dust in our solar system. In the spring and fall, each hemisphere receives similar amounts of light. We also enjoy protection from Earth's magnetic field, generated by our planet's rotation and its iron-nickel core. I see this in the public comments on this video on Youtube. Credit: National Geographic The notion that viewers should try to appreciate all the features of the show without necessarily understanding all the science was reiterated by some of the other astronauts, including former.
Instead there was only a new star and a cloud of dust in our solar system. It's told from the point of view of eight astronauts, but having the story of Earth told by people who have left it wasn't always the vision the filmmakers had in mind. She enjoys writing about black holes, exploding stars, ripples in space-time, science in comic books, and all the mysteries of the cosmos. John Payne team up in the struggle to save the Sumatran rhino from extinction. You're more successful because you have these differences.
Over millions of years, a series of violent changes led to the formation of our world and, eventually, the creation of life. Four and five stars should be reserved for really excellent quality. What happened during the Cambrian Explosion? Species continue to evolve, taking on new forms, splitting into daughter species or going extinct in the process of adapting or dying in response to ever-changing physical environments. These bodies of water contain 97 percent of Earth's volcanoes and , a massive mountain range more than 40,000 miles long. In the last two centuries, humans have added enough greenhouse gases to the atmosphere to raise Earth's average temperature. What is coal made of? Hominins, the earliest direct ancestors of the human clade, rose sometime during the latter part of the Miocene epoch; the precise time marking the first hominins is broadly debated over a current range of 13 to 4 mya.
This 10-part series was filmed in 45 countries, on six continents, and from outer space. The age of Earth is approximately one-third of the age of the universe. Students use prior knowledge, a photo gallery, and a video to discuss what they already know about extreme weather on Earth and brainstorm a list of weather-related words. You probably don't know much about the tallest structure in South America, because it's not easy to get to. The Tharp-Heezen map illustrated the geological features that characterize the seafloor and became a crucial factor in the acceptance of the theories of plate tectonics and continental drift.