Presentation on theme: "OUT OF THIS WORLD: COMETS ASTEROIDS, AND METEOROIDS"— Presentation transcript:
1 OUT OF THIS WORLD: COMETS ASTEROIDS, AND METEOROIDS By Mercury WilliamsEdited by __________________
2 In the Milky Way galaxy lies our solar system, a region composed of the sun, eight planets, and moons. Most people disregard the smaller celestial bodies called asteroids, comets, and meteoroids that fill our solar system.
4 Comets, commonly known as “Dirty Snowballs” are composed mainly of ice, dust, rock, and frozen gases that do not have any definite shape.
5 Comets appear to be fireballs of light zooming through the sky Comets appear to be fireballs of light zooming through the sky. Comets, however, do not produce their own light. Gas and dust particles reflect the sun’s light.
6 In 1986, scientists all over the world awaited the arrival of Halley's comet. This would be the only opportunity in history to gather information about such a comet, because its motion is extremely unpredictable.
12 Meteoroids, bits of rock and metal, are formed from asteroids and comets. These small celestial objects move throughout the solar system.
13 Meteors are also know as shooting stars Meteors are also know as shooting stars. When a meteoroid enters the atmosphere, friction with the air creates heat, and produces a streak of light This is called a meteor.
14 Meteorites are meteoroids that pass through the atmosphere and hit the Earth’s surface before they burn up. Meteorites are classified based on their composition.
15 Students,I’m having a hard time concluding this PowerPoint. Please write a summary.Thanks-Mercury