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Dwarf planets are a lot like regular planets. They both have enough mass and gravity to be nearly round, and they both travel through space in a path around the Sun. However, the path of the dwarf planet is full of objects like asteroids. A regular planet has a clear path around the sun.
(Source: DCMP)
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term planet. Part of the Science Video Vocab Series.
Our solar system is a fascinating place. Colorful images illustrate the major planets and their unique characteristics. Special attention is paid to what makes Earth unique in the solar system.
Discover how scientists compare the reflected red, blue, and green light from planets in the solar system to identify distant planets. Carolyn Crow, an astronomer, describes how the amount of green, blue, and red light reflected by planets can be plotted. A diagram compares the color data of the planets and shows that Earth is easily distinguishable by its blue color.
Volcanoes and earthquakes! Geysers and boiling mud! Natural forces like these have been working for millions of years, changing the surface of the earth. Examines the layers of earth, a history of continental drift, plate tectonics, and other phenomena at work on our planet.
What is the best way to power the planet? Travel the globe with scholar Johan Norberg, from Morocco to Sweden and throughout the United States, as he explores the pros and cons of the eight main energy sources available to us: coal, oil, natural gas, nuclear, hydro, biomass, wind, and solar.
Host award-winning geoscientist, Richard Alley provides an eye-opening look at some of the world’s most important energy decisions, and an assessment of what it takes to build a sustainable energy infrastructure. Part 2 of Earth: The Operators’ Manual.
Astronomers are beginning to locate thousands of planets that exist outside of the solar system. Scientists provide a behind-the-scenes look at the simple technique that astronomers are using to discover these curious new planets. Part of the "Science Out Loud" series.
Down in the village square, everyone is scratching themselves. What exactly happened last night after the rain? Hanna and Olli lead the investigation with some help from Suzie the spider. Part of the "My Little Planet" series.
Learn the three criteria for classifying planets and discover why Pluto is now considered part of the Kuiper belt. When Pluto was discovered in 1930, it was classified as the ninth planet in the solar system. However, advances in technology brought about new knowledge of Pluto, and it is now recognized as a dwarf planet.
A hen has been kidnapped. The tracks Hanna and Olli discover lead them to believe that a bear is responsible. Following the footprints in the snow, the children find themselves in very close quarters with the presumed culprit. Part of "My Little Planet" series.
It is a hot summer night, and the children are unable to go to sleep. With the help of some of Suzie's magic, they find themselves floating on a large piece of ice in the ocean. They have a great time learning about the characteristics of polar climates. Part of the "My Little Planet" series.
What happens to water once it goes down the drain? Suzie shrinks Hanna and Olli so they can get a closer look. They travel through the sewers to the water treatment plant and learn what happens to dirty water. Part of "My Little Planet" series.
New discoveries regarding the Outer Planets are creating a fundamental rethinking of our solar system. Uranus is a toxic combination of hydrogen, helium and methane. Scientists speculate that the planet was knocked on its side after colliding with another body. Neptune's largest moon, Triton, is cold and barren, but some scientists speculate that liquid water might exist under Triton's icy surface. Cold and inhospitable, Pluto completes one orbit around the solar system every 248 years. Cutting-edge computer graphics are used to bring the universe down to earth to show what life would be like on other planets, and to imagine what kind of life forms might evolve in alien atmospheres.
Hubble has studied all of the planets in the solar system except Mercury. Some of Hubble's notable accomplishments include observations of the climate of Venus, dust storms on Mars, the impact of a comet on Jupiter, the rings of Saturn and Uranus, Neptune's immense storms, and dwarf planets such as Pluto, Ceres, and Eris.
Ollie and Hanna receive a lesson on breathing. Suzi, with the help of a friend, explains why all living things must breath. Part of "My Little Planet" series.
Are planets still being formed? Dr. Debra Fischer answers this and other questions about the Cosmos. Part of the "Ask a Scientist" series.
Mars is the planet in our solar system most similar to Earth. Rumors of life on it may be substantiated as NASA orbiters and rovers discover new evidence of frozen water just beneath the rusty soil. Did alien life exist there? As Earth reels with the effects of global warming, Mars becomes the most likely candidate for eventual human habitation. Cutting-edge computer graphics are used to show what life would be like on Mars, and to imagine what kind of life forms might evolve in alien atmospheres.
What happens to the never-ending stream of cartons, boxes, and bottles that enter the landfill? Hanna and Olli visit ”Packaging Land” and discover new ideas for recycling. Part of "My Little Planet" series.
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