Comets
Comets are small icy objects that originate in the outer Solar System and orbit around the Sun in elongated elliptical orbits. Comets are made up of loose collections of ice, dust and small rocky particles, and they range in size from few kilometers to tens of kilometers across. When they come near the Sun they partially vaporize, developing a bright tail that is sometimes visible to the naked eye.
Play Quiz Games :| Grades | Quiz Games (with special printable formats for classroom use) | ||
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| 5th - 12th | Quiz on Comets, #1 | Quiz on Comets, Asteroids & Meteoroids | |
| Quiz on Comets, #2 | Features of Comets, Asteroids & Meteoroids | ||
| Famous Comets, Asteroids & Meteorites | |||
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Science Videos & Lessons: (Reviewed by K-12 teachers) Exploring Comets Grade: 2 - 12 Explore comets with this video. Learn where comets come from, what they are made of, NASA missions to visit comets and much more. 9:20 |
Unlocking Comet Secrets - A Comet's Tale Grade: 2 - 12 Learn how scientists use observation domes and powerful telescopes to study comets. As the black comet rock reflects back only 4% of the light, these cosmic rocks can be a little tricky to spot. 2:25 |
Comets - Remnants Of The Beginning Grade: 2 - 12 Comets are very important because they represent the leftover bits and pieces from the outer solar system formation process, which took place four and a half billion years ago. In this lesson, learn all about the comets - what they are made up of, their possible role in the origin of life on Earth, NASA missions to comets, and much more. 4:50 |
Comet vs Asteroid vs Meteor Grade: 2 - 12 Find out what's the difference between a comet, an asteroid and a meteor. 2:00 |
Jupiter Explosion - A Comet's Tale Grade: 2 - 12 A rare chance to see space agency footage as a comet strikes Jupiter and is caught on camera. In one of the biggest explosions that have ever been witnessed, scientists discuss the theoretical impact of a relative blast on Earth. 1:10 |
Mission To Catch A Comet Grade: 2 - 12 Learn about the Rosetta Spacecraft. It is on a 10-year mission to catch the comet '67P/Churyumov-Gerasimenko'. Rosetta will be the first spacecraft to soft-land a robot on a comet! As the first spacecraft to accompany a comet as it enters our inner solar system, it'll observe at close range how the comet changes as it approaches the Sun. 2:15 |
Nasa Spacecraft meets Comet Tempel-1 Grade: 2 - 12 Learn about the Stardust NExT spacecraft. Stardust NExT's robust shields have the capacity to stop a centimeter sized particle (traveling at 6 kilometers per second), while flying through comet Temple 1's cloudy coma. 2:20 |
Comets Grade: 2 - 12 In this lesson, scientists explain how comets form, and what potential threat they might represent to Earth. 3:30 |
What are Meteorites? Grade: 2 - 12 Learn about fascinating facts about meteorites. Find out where meteorites come from, and what they can tell us about the solar system's beginnings. 3:30 |
Meteors from Halley's Comet Grade: 2 - 12 Earth passes through a stream of dust from Halley's Comet that causes the annual Aquarid meteor shower. Learn more about it in this presentation. 2:30 |
Comets and Meteor Showers (Perseid Meteor Shower) Grade: 2 - 12 Have you ever wondered what makes these cosmic fireworks? Meteor showers are just colorful debris of a passing comet or a fragmented asteroid. Learn all about them in this video. 2:20 |
Doomsday Asteroids Grade: 2 - 12 With thousands of asteroids, comets and other near-Earth object buzzing by our planet, learn how we can avoid the same fate as the dinosaurs. 3:05 |
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