Act+4+Impact

Think About It: ~ Tiffany Kemple
 * I think that the Meteor Crater is very large. If the circumference is 4 km im guessing the diameter is around 1 km because circumference equals pi times the diameter.
 * I think if the meteor crashed down on Earth it would kill thingsnear and around it and would also destroy ecosystems and cause a lot of destruction.

GeoWords Lily Hughes
 * Solar wind – a flow of hot charged particles leaving the Sun.
 * Meteoroid – a small rock in space.
 * Meteor – the luminous phenomenon seen when a meteoroid enters the atmosphere (commonly known as a shooting star).
 * Meteorite – a part of a meteoroid that survives through the Earth’s atmosphere.

**Digging Deeper- Meteoroid, Meteors, Meteorites **
====//Meteoroids// are tiny particles in space, like leftover dust from comets or asteroids. Meteoroids are known as //meteors// when they enter Eath's atmosphere. Then when meteors reach Earth's surface they are known as //meteorites//. About 80% of meteorites that reach Earth look like rocks and are hard to tell apart. Some of them consist of metals, iron, and nickel. ====

Digging Deeper Notes pg E41-E42
====Most Asteroids are in the region between Jupiter and Mars called the asteroid belt. There are most likely 100,000 asteroids 1km in diameter and larger. Most scientist believe that the extinction of the dinosaurs 65 million years ago was caused by an asteroid or comet 10km in diameter. Such an impact would send up enough dust into the atmosphere to cloud the Earth for many months blocking sunlight causing plants and animals to die off.====

-Thomas Crutchfield
3. Comets have tails because, as they approach the inner solar system the ices within them evaporate and throw off gas and particles into space. These are pushed away from the comet by solar wind. As a comet orbits the sun, the gases eminating away from the sun are illuminated thus making it appear that the tail points away from the sun.
 * Check Your Understanding: E45**
 * By Chelsea Blanton **

Asteroids and Comets: Astroids are rocky bodies smaller than planets that are leftover from the formation of the solar system. most astroids are located between jupiter and mars this is called the astroid belt. Comets are masses of frozen gases and rocky dust particles also leftover from the fromation of the solar system. they orbit around the sun and most of the time their orbits are very eccentric. we can see comets when the get to close to the sun and the heat vaporizes the ice forming a cloud. By: Lea Kincaid

**Energy=2/3(pie)pr(cubed)v(square)**
 * __INVESTIGATE #2__**
 * __ A. __ If an object makes an impact with the Earth, and it has 10 times the velocity of another identical object traveling at the same speed, the factor that the energy of the object would increase is by 100 because in the equation thevelocity is squared. **
 * __ B. __ If an object makes an impact with Earth, and it has 10 times the radius of another object traveling at the same speed, the factor that the energy of the object would increase is 1000 because the radius is cubed. **
 * __ C. __ This shows that large, fast, and big objects have more impact than slow, fast, and small objects. **

**BY. Godwin Djokoto**

Meteor Crater 20 7800 20000 5.24
-Hannah Albritton

=== Most scientists believe that the extinction of dinosaurs 65 million years ago is due to an asteroid or comet hitting the Earth. The impact had to have been really strong and the asteroid or comet was 10 km in diameter. A large impact like this would create enough dust to cloud the Earth's atmosphere for many months. Sunlight would be blocked out and kill off many plants, and then eventually the animals that fed off those plants would die off too. 75% of all plants and animals became extinct after this impact. ===

By: Taylor Smith
Comets are masses of frozen gases (ices) and rocky dust particles. Like asteroids, they are leftovers from the formation of the solar system. There are many comets that orbit around the sun. their orbitss are usually very eccentric with large inclinations. The orbits of many comets are very large, with distances from the sun of about or greater than 20,000 astronomical units.

BY:KATHRINE JACQUES

Asteroids are rocky bodies smaller than planets. They are left overs from the formation of the solar system. Asteroids orbit the sun in very elliptical orbits with inclinations of up to 30 degress. most asteroids are in the region between jupiter and mars called the asteroid belt. Gabby Garibaldi

This is a picture of a major-impact meteorite. About 49,000 years ago a large nickel-iron meteorite 150 ft across, weighing several hundred thousand tons and traveling at a speed of 40,000 miles per hour, hit Earth. The result of this meteor is east of Flagstaff, Arizona and is called the Barringer Crater. It is the best preserved impact crater ever. The force generated by the impact was equal to the explosion of 20 million tons of TNT. -- Jade Miller

** What are asteroids? ** Asteroids are rocky bodies smaller then the planets. They are left overs from the formulation of our solar system. Asteroids orbit the sun in very elliptical orbits with inclinations up to 30%. Most asteroids are in the region between Jupiter and Mars. This area between these two planets is known as the asteroid belt. By: Brittany Stocker

Table 2 Close approach of Comets-Nick Mehler Digging Deeper- Notes on Comets- Luke Bickerstaff Comets have collided with the Earth since its earliest formation. It is thought that the ices from comet impacts melted to help form Earths oceans. The impact of a comet in a populated area could result in a large amount of damage and loss of life. __Comets pg. E 43 __ Comets are masses of frozen gases and rocky dust particles. They are leftover particles of our solar system, like asteroids. There are many comets that orbit around the sun. Their orbits are usually very eccentric with large inclinations. The orbits of many comets are very large, with distances from the sun pf greater than 20,000 astronomical units. –KORY SANDERS J
 * Name || Designation ||   ||   ||
 * Comet of 1491 || C/1491 Bl ||  ||   ||
 * Lexell || D/1770 Li ||  ||   ||
 * Temple tuttle || 55P/1366 UI ||  ||   ||
 * IRAS-Araki-Alcock || C/1983 HI ||  ||   ||
 * Halley || IP/837 ||  ||   ||
 * Biela || 3D/1805 VI ||  ||   ||
 * Comet of 1743 || C/1743 CI ||  ||   ||
 * Pons-Winnecke || 7P/ ||  ||   ||
 * Comet of 1014 || C/1014 CI ||  ||   ||
 * Comet of 1702 || C/1702 HI ||  ||   ||
 * Comet of 1132 || C/1132 ||  ||   ||

Meteoroids, Meteors, and Meteorites are all the same thing just in different places, and in different states. Meteoroids are tiny particles left over from the tail of a comet. These are located in space. These same objects are called Meteors once they enter the Earth’s atmosphere. Ones they hit the surface of the Earth they are called Meteorites. It is estimated that 1000 tons of material is added to the earth each year because of this. -Tommy Rutt
 * Meteoroids, Meteors, and Meteorites**

__Check Your Understanding #2__ A major asteroid impact would have sent dust into our atmosphere blocking sunlight and killing plants and the animals that fed on those plants, causing extinction of not only single species but multiple species of plants and animals in the geological past. -Morgan Mueller

===About 1000 tons of material is added to the Earth each year by meteorites, much of it through dust-sized particles that settle slowly through the atmosphere. There are several types of meteorites. About 80% that hit Earth are stony in nature and are difficult to tell apart from Earth rocks.About 15% of meteorites consist of the metals iron and nickel and are very dense.=== -Joshua Kirtley

====Most (but not all) scientists believe that he extinction of the dinosaurs 65 million years ago was caused by the impact of an asteroid or comet 10 km in diameter. Such a large impact would have sent up enough dust to could the entire Earth's atmosphere for many months. This would have blocked out sunlight and killed off many plants, and eventually, the animals that fed on those plants. Not only dinosaurs died out. About 75% of all plants and animals became extinct.==== -Gage Chumney