1 / 15

Other objects in the Solar System

Other objects in the Solar System. S1-4-08b Differentiate between the major components of the universe. KEY WORDS Moon Asteroid Trojan Meteoroid Meteorite Meteor Comet . Moons. Moon : Large natural object (rock/metals) that revolves around a planet – also called a satellite.

kiet
Télécharger la présentation

Other objects in the Solar System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Other objects in the Solar System

  2. S1-4-08b Differentiate between the major components of the universe. KEY WORDS Moon Asteroid Trojan Meteoroid Meteorite Meteor Comet

  3. Moons

  4. Moon: Large natural object (rock/metals) that revolves around a planet – also called a satellite. The Roman goddess of the moon was Luna • Probes (robot explorers) have investigated moons of Mars, Jupiter and Saturn • (Oct 2008) 172 known moons in our Solar System

  5. Io- only moon known to have active volcanoes Europa– contains more ice and water than Earth and may contain life.

  6. Humans have visited the moon’s surface six times between 1969and1972. • 1st- SovietLuna 2 (1959) • 2nd brightest object in sky • No atmosphere • ¼ diameter of Earth The gravitational pull of the moon on our ocean is what causes the tide to rise and fall

  7. Asteroids

  8. Asteroid: Chunk of rock/metal that orbits the Sunbut too small to be planets – minor planets. • Asteroid that cross path with Earth called Trojans The fear is that a Trojan passes close enough to get pulled in by Earth’s gravity and collide • Asteroid belt in large gap from Mars – Jupiter • Largest is only 1000 Km in diameter • Asteroids are rich in minerals – future mining

  9. Meteoroids

  10. Meteoroid: lump of rock that is trapped by Earth’s gravity and pulled into the atmosphere. Falling meteoroids bump into air molecules heating up (friction) until the air glows – and the meteoroid burns up and breaks apart. • Meteoroid that completelyburns up - meteor • producing a streak of light - shooting star The only difference between meteoroid and asteroid is that a meteoroid is random, an asteroid orbits the Sun

  11. Meteorite: fragment of a meteoroid that doesn’t burn up and strikes the Earth (space rock). • Large meteorites make craters • Westhawk Lake is a crater Meteorite impact crater in Arizona

  12. Comets

  13. Comet: chuck of ice/dust that orbits the Sun. • Made of the head (coma) and the tail • Tail: passing by Sun heats trailing gas and debris then blown out by solar wind - millions of km long • Some have regular periods of revolution around the Sun Halley’s comet: last seen in 1986 it has a period of 76 years

  14. CAN YOU ANSWER THESE QUESTIONS? S1-4-08b: What other objects make up our solar system? KEY WORDS Moon Asteroid Trojan Meteoroid Meteorite Meteor Comet

More Related