Earth+and+Space+Science

1.Nebula- consist mostly of gas( hydrogen & helium) and dust. Creators or birth places of stars. The collapse of a nebula eventually creates the new star an system around it. gas at the center of the nebula densifies and becomes a sun. 2.Terrestial Planet- As the collapsed nebula rotates and cools debris and dust forms rings in the new system. the dust and debris forms different elements and then impacts the newly forming planets. usually form very close to the central star. 3.Gas Giant- in the outer rings of space, where it is colder. planets gravity pulls the gas in towards the core and a gas giant is formed. 4.Planetesimals- solid bodies reaching hundreds of kilometers in diameter that formed as smaler particles collided and stuck together.
 * Assignment 5:**

5.planet- created by the collision and planetesimals resulting of a number of larger bodies. called planets. very rocky and dense, have molten core.

6.Satellite (Moon)- smaller planetesmials stuck in a planets gravity.

7.Asteroid- Comprise the thousands of bodies that orbit the sun with the planetary orbit. the "leftover" of the formation of the solar system. 8.Meteorite-is a natural object originating in outer space that survives an impact with the Earth's surface. 9.Meteor-is a bright streak of light that appears briefly in the sky. 10.Kuiper Belt- is a region of the Solar System beyond the planets extending from the Orbit of Neptune to approximately 55 AUfrom the Sun. 11.Oort Cloud- is an immense spherical //cloud// surrounding the planetary system and extending approximately 3 light years. 12.Comet- is a Small icy bodies that have highly eccentric orbits around the sun and are remnants from solar system formation. 13.Asteroid Belt-is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. 14.Meteoroid- is a small sand to boulder sized particle of debris in the Solar System. Asteroid Fragment. 15.Nucleus-The inner solid portion of a planet. 16.Coma-is an extended volume of glowing gas flowing from a comets head.

DIORITE: Intrusive igneous rock. i it has the elements fledsbar and is made from cooled magma.
 * Assignment 4:**


 * Assignment 3:**


 * __Luster__:** The state or quality of shining by reflecting light; glitter, sparkle, sheen, or gloss



__**Streak**__: Streak is the color of the finely crushed mineral. Streak is somewhat more reliable than color and is essential for a few minerals. You'll need a streak plate or something like it. A broken kitchen tile or even a handy sidewalk can do. Scratch your mineral across the streak plate with a scribbling motion.

__**Hardness**__: hardness commonly refers to a material's ability to penetrate softer materials .



__**Cleavage**__: The tendency of certain minerals to break along distinct planes in their //crystal structures// where the bonds are weakest. Cleavage is tested by striking or hammering a mineral, and is classified by the number of surfaces it produces and the angles between adjacent surfaces. Fracture: Definition: Fracture is the characteristic mark left when a mineral chips or breaks. Purpose: All minerals exhibit a fracture, even those that exhibit cleavage. If a mineral with cleavage is chipped a certain way, it will fracture rather than cleave. Hardness: Definition:the property of being rigid and resistant to pressure Purpose: to find the hardness of a mineral, strike it ith something with a known hardness Special Unique: Definition: any unique property that separates one mineral from another Purpose: could be smell(sulfur), magnetism(magnetite) or anything else that makes a mineral easier to identify.



Earth And Space Science

This is a place called LVP (Lehigh Valley Paintball). The estimated coordinates of it are 40 31' 49.45"N 75 29' 22.96"W