th 8 Grade Characteristics of the Universe Universe

Universe Outer space and everything in it. Image from: http: //www. futurehi. net/images/deepfield. jpg;

Star An object made of gas that gives off energy. Image From: http: //www.

Nebula A large cloud of gas and dust in space where stars form. Image

Galaxy A large grouping of stars in space. Image From: http: //www. astronomy-pictures. net/spiral_galaxy.

Spiral Galaxy A galaxy with a bulge in the center and distinctive spiral arms.

Irregular Galaxy A galaxy with an irregular shape. Barnard’s Galaxy is an irregular shaped

Elliptical Galaxy A spherical or elongatedshaped galaxy. M 87 is an elliptical galaxy. Image

Milky Way Galaxy The name of the galaxy where we live. Image From: http:

Moon A natural satellite of a planet. Image From: http: //sos. noaa. gov/images/Solar_System/moon. jpg

Comet A body of ice, rock, and dust that orbits the sun. Great Comet”

Light Year A measure of how long it takes light to travel through space

Magnitude A measure of how bright a star is. Images From: http: //www. astronomyforbeginners.

H – R Diagram Shows the relationship between absolute magnitude, luminosity, classification, and effective

Gas Giant A large planet made mostly of gases and found in the outer

Terrestrial Planet A rocky planet in the inner solar system. Image From: http: //www.

Meteorite A piece of rock from space that has landed on the Earth's surface

Meteoroid A small, rocky body that revolves around the Sun; smaller than an asteroid.

Asteroid A small, rocky body that revolves around the Sun. Asteroid Ida Image From:

Meteor A bright streak of light caused by the burning of a piece of

Electromagnetic Spectrum The range of all the waves that can travel through matter as

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th 8 Grade Characteristics of the Universe

Universe Outer space and everything in it. Image from: http: //www. futurehi. net/images/deepfield. jpg; Definition Adapted From: Access Science Glossary, page 324.

Star An object made of gas that gives off energy. Image From: http: //www. psy. ritsumei. ac. jp/~akitaoka/sun. jpg; Definition Adapted From: Access Science Glossary, page 322.

Nebula A large cloud of gas and dust in space where stars form. Image from: http: //www. knowledgerush. com/wiki_image/d/d 6/Triangulum. nebula. arp. 750 pix. jpg; Definition From: www. thefreedictionary. com

Galaxy A large grouping of stars in space. Image From: http: //www. astronomy-pictures. net/spiral_galaxy. jpg; Definition: www. thefreedictionary. com

Spiral Galaxy A galaxy with a bulge in the center and distinctive spiral arms. Galaxy M 81 is a spiral galaxy Image From: http: //geology. com/nasa/universe-pictures/spiral-galaxy. jpg; Definition: www. thefreedictionary. com

Irregular Galaxy A galaxy with an irregular shape. Barnard’s Galaxy is an irregular shaped galaxy. Image From: http: //astronomy-mall. com/Adventures. In. Deep. Space/images/barnard. jpg ; Definition: www. thefreedictionary. com

Elliptical Galaxy A spherical or elongatedshaped galaxy. M 87 is an elliptical galaxy. Image From: http: //apod. nasa. gov/apod/image/0406/m 87_cfht. jpg; Definition: www. thefreedictionary. com

Milky Way Galaxy The name of the galaxy where we live. Image From: http: //abyss. uoregon. edu/~js/images/milky_way_large. jpg; Definition Adapted From: www. thefreedictionary. com

Moon A natural satellite of a planet. Image From: http: //sos. noaa. gov/images/Solar_System/moon. jpg ; Definition: www. thefreedictionary. com

Comet A body of ice, rock, and dust that orbits the sun. Great Comet” of 1996, Hyakutake Image From: http: //www. thunderbolts. info/tpod/2006/image 06/060227 comet. jpg ; Definition: www. thefreedictionary. com

Light Year A measure of how long it takes light to travel through space in one year. Image From: http: //uniqhorns. com/images/milkyway. gif; Definition: www. thefreedictionary. com

Magnitude A measure of how bright a star is. Images From: http: //www. astronomyforbeginners. com/images/doublecluster. jpg & http: //startswithabang. com/wpcontent/uploads/2008/12/549 px-sirius_a_and_b_hubble_photo. jpg ; Definition: www. thefreedictionary. com

H – R Diagram Shows the relationship between absolute magnitude, luminosity, classification, and effective temperature of stars. Image From: http: //lcogt. net/files/jbarton/HR%20 Diagram(units). jpg ; Definition Adapted From: www. thefreedictionary. com

Gas Giant A large planet made mostly of gases and found in the outer solar system. Image From: http: //www. astrophys-assist. com/educate/robot/images/gas-giants. jpg ; Definition: www. thefreedictionary. com

Terrestrial Planet A rocky planet in the inner solar system. Image From: http: //www. eso. org/public/outreach/eduoff/vt-2004/Background/Infol 2/vt 2004 -if 8 -fig 3. jpg ; Definition: www. thefreedictionary. com

Meteorite A piece of rock from space that has landed on the Earth's surface without completely burning up. Meteorite close to Grootfontein Image From: http: //mirror-us-ga 1. gallery. hd. org/_exhibits/places-and-sights/_more 2002/_more 11/Namibia-Grootfonteinvicinity-Hoba-meteorite-at-50 -tons-the-biggest-known-in-the-world-SMO. jpg ; Definition: www. thefreedictionary. com

Meteoroid A small, rocky body that revolves around the Sun; smaller than an asteroid. Image From: http: //4. bp. blogspot. com/_D 2 scww 3 Lt. B 4/Sj. Kwb 6 KMk. ZI/AAAAAEk/m. Rqf. Mf. IWqf 4/s 320/gaspra. gif; Definition Adapted From: www. thefreedictionary. com

Asteroid A small, rocky body that revolves around the Sun. Asteroid Ida Image From: http: //nssdc. gsfc. nasa. gov/image/planetary/asteroid/ida. jpg ; Definition: www. thefreedictionary. com

Meteor A bright streak of light caused by the burning of a piece of rock from space as it enters the Earth's atmosphere. Image From: http: //s 4. hubimg. com/u/85679_f 260. jpg; Definition: www. thefreedictionary. com

Electromagnetic Spectrum The range of all the waves that can travel through matter as well as empty space. Image From: http: //www. lcse. umn. edu/specs/labs/images/spectrum. gif; Definition: www. thefreedictionary. com