ASTEROIDS

THE BASICS

• It is made out of rock, medals, carbon, silicate compunds, clay
• Three types are carbonaceous, silicate, medal rich
• They rang in size from 20 feet(6meters)- 959 km (590 miles)
• Thry are mainly found in are are solar system between mars and jupiter

DENFINE AN ASTEROID

• A small rock body that orbits the sun
• Depending on the asteroid it can differ in apperance
• The rocks size ranges but the minerals it caries canges
• Some minerals are silicate compounds, carbon, metals

ASTEROIDS

• Iron meteorites: Iron 91 percent! Nickel 8.5 percent, Cobalt 0.6 percent
• Stony Meteorites: Oxygen 36 percent, Iron 26 percent, Silicon 18 percent
• Magnesium 14 percent, Aluminum 1.5 percent, Nickel 1.4 percent,
• Calcium 1.3 percent

DO THEY ORBIT THE SUN

• Yes they do
• They go around the sun in elliptical orbits
• Some make there own moons
• They sometimes get hooked on a planets gravity and become a moon

THE REASON FOR THE ASTEROID BELT

• They belt formed from a solar nubula
• Between mars and jupiter we have a asteroid belt
• When the planetesimals became protopanets
• Jupiter gave them to much orbital energy to form the belt
• Collisions became too violent and the protoplanets

WHY DO SCIENTISTS LOOK FOR ASTEROIDS

• An asteroid that is falling has tremendous of energy
• 2028 the asteroid 1997XF11 will come close to earth but miss
• If this mile wide asteroid hit us at 30,000 mph
• It would equal the force and energy of a 1 million megaton bomb
• Asteroids like this are tracked and found through radar

THE LARGEST ASTEROID

• The largest asteroid ever recorded is Ceres
• This asteroid is 950 km (590 miles) in diameter
• Ceres was discovered on Jan 1, 1801

FUN FACTS

• Asteroids come in many colors from red to green to grey
• Asteroids stay close to their belts
• The asteroid belt by jupiter hints that it made a sunward move early in the solar system
• There have been 8,900 asteroids that came close to Earth
• The dinosaur killing asteroid that struck 65 million years ago struck at the Yucatán Peninsula

FUN FACTS

• The one hazardous asteroid is one that is 500 feet wide and comes with in 4.65 miles of Earth
• The largest asteroid, Ceres, contains water vapor
• 99.9% of the asteroid belt's original mass was lost in the first 100 million years of the Solar System's history

BIBLIOGRAPHY

• Space.com
• Nasa.gov
• Esa.int
• Howstuffworks.com
• Solarsystem.nasa.gov