Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of …
Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets up close and found them to be lumpy, with vents on the surface that release the gas as ice sublimates. Eons ago, comets (and asteroids) may have brought a lot of water to Earth -- as well as the ingredients for life.
Chapters: Introduction: Comets Comets = Dirty Snowballs Comets Have Two Tails Short-Term vs Long-Term Comets Where do comets come from? Comets Up-Close What Happens When Comets Hit Earth? Review
Students will experimentally learn how meteoroids are formed. They will melt a …
Students will experimentally learn how meteoroids are formed. They will melt a comet, learning about its composition, and break apart asteroids. The students learn the differences between meteoroids, meteors and meteorites and how the impact of asteroids/meteoroids can affect life on Earth.
This is an introduction to the study of the solar system with …
This is an introduction to the study of the solar system with emphasis on the latest spacecraft results. The subject covers basic principles rather than detailed mathematical and physical models. Topics include: an overview of the solar system, planetary orbits, rings, planetary formation, meteorites, asteroids, comets, planetary surfaces and cratering, planetary interiors, planetary atmospheres, and life in the solar system.
This is a 30 minute lesson where students will be able to: …
This is a 30 minute lesson where students will be able to: 1. Describe the size, composition, and motion of meteors and comets. 2. Discuss the similarities and differences in comets and meteors. 3. Explain: a. what happens to meteors as they fall through the atmosphere b. why comet debris is observed as a meteor shower from the Earth c. how the planet's gravitational forces affect a comet's orbit. d. why we see a comet's tail. e. why a comet disintegrates when it gets close to the sun.
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