Differentiate between a meteor, meteoroid and a meteorite.
Describe comets and asteroids.
Meteoroids - small ancient debris orbiting the sun
Meteor - when a meteoroid enters the Earth's atmosphere & begins to burn (shooting star)
Meteorite - any part of the meteor that survives Earth's atmosphere & falls to the ground as rocky material (original solar system material)
Asteroids - Rocky material orbiting the sun, ASTEROID BELT between Mars & Jupiter, some cross Earth's orbit & possibly impact the Earth
Comets - Dirty snowballs of water, ice, & methane
- Comets fall towards the sun (tail blown away from the sun by solar wind)
- Ex: Halley's Comet - orbits the sun every 76 years
Impact of large comet or asteroid hit Earth near the Yucatan Peninsula, causing the extinction of dinosaurs