Science quiz

• Ion tail result of the interaction of ion particles with the force of sunlight
• Dust tail shows path of the comet
• Comet is a chunk of ice, gas, and dust that orbits the sun in a long, narrow elliptical orbit
• Meteoroid is a solid, rocklike, object from space
• Meteoroids that enters the earth's atmosphere are called meteors
• A meteoroid that actually reaches earth's surface becomes a meteorite
• Chondrules are small colorful, grain-like sphere about the size of a pin head, which are considered of the oldest materials within the solar system
• Meteor showers happen when a group of meteoroids travels in the same direction at nearly the same speed
• Greek word asteroeides, which means "starlike" or "starshaped"
• Asteroids that pass close to earth are called near-earth objects
• Asteroids are chunks of rocks or fragments of plantlike material of varying sizes floating in space
• Iron mateorites are made up of mostly nickel and iron
• Stony-iron meteorites are a combination of iron and silicate
• Te consists of fragments of glass that have strange chemical composition with several peculiar shapes
• Coma is composed of gases emitted from the nucleus
• Asteroid belt separates the inner planets within 250 million miles of the sun
• Greek word comëtë, meaning "long-haired"
• Kuiper belt or the portal cloud, a vast of icy debris that surrounds the solar system
• Takes less than 200 years is short-period comet
• Takes more than 200 years is long-period comet
• Giuseppe piazza discovered a star starlike object that he first thought of as a comet