[DOC] [TLE] Jeopardy Clues and Questions - Day 1 [PAR] The Universe, $200, Horsehead, Triffid, and Crab are three examples of these 
clouds of interstellar matter. What are nebulae? 8. The Universe, $300, On Nov. [DOC] [TLE] What is the interstellar medium? [PAR] Simply put, the interstellar medium is the material which fills the space ... These 
regions have very low densities and consist mainly of gas (99%) and dust. ... 
Cold clouds of neutral atomic or molecular hydrogen; and; Hot ionized ... 
Examples of emission nebulae are the Trifid Nebula or the Orion Nebula ... 
Horsehead nebula... [DOC] [TLE] Nebula - Wikipedia [PAR] A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized 
gases. Originally ... The supernova that created the Crab Nebula, the SN 1054, 
was observed by Arabic ... Examples of these types of nebulae are the Rosette 
Nebula and the Pelican Nebula. ... The Horsehead Nebula, an example of a dark 
nebula. [DOC] [TLE] CHIPS-Educational Brief - Center for Science Education [PAR] Students will learn about the Interstellar Medium and the Local Bubble that the ... 
It may be handed out to these students to read on their own or it may serve ... of 
the photograph (shaped like a horse's head) is a thick cloud of interstellar .... The 
Crab Nebula is an example of a young supernova remnant. ..... The Trifid Nebula. [DOC] [TLE] Nebulae by Petrakova Borshow on Prezi [PAR] Apr 15, 2014 ... Horsehead Nebula ... This is where a large cloud of hot gas covers a star. ... Due 
to a large presence of hydrogen, these nebulae are usually red. ... ~It's formed 
when parts of the interstellar medium collapses and clumps together ... The Trifid 
nebula in Sagittarius is a famous example of a reflection nebula. [DOC] [TLE] Nebulae - Celestial Objects on Sea and Sky [PAR] A nebula is a cosmic cloud of gas and dust floating in space. More than ... These 
clouds of matter are also quite large. In fact, they ... These are emission nebulae, 
reflection nebulae, dark nebulae, planetary nebulae, and supernova remnants. ... 
The Trifid Nebula (M20) in Sagittarius is a good example of a reflection nebula. [DOC] [TLE] Chapter 18 The Interstellar Medium [PAR] 18.1 Interstellar Matter. 18.2 Emission Nebulae. 18.3 Dark Dust Clouds. 
Ultraviolet Astronomy and the Local Bubble. 18.4 21-Centimeter Radiation. [DOC] [TLE] Nebulae - Crystalinks [PAR] A nebula is an interstellar cloud of dust, hydrogen gas and plasma. ... from the 
gravitational collapse of diffuse gas in the interstellar medium or ISM. ... One of 
the best examples of this is the Crab Nebula, in Taurus. ... These emission 
nebulae are often called HII regions; the term "HII" is used in ..... Trifid Nebula 
Wikipedia... [DOC] [TLE] Hubble Sees a Horsehead of a Different Color | NASA [PAR] Apr 19, 2013 ... Looking like an apparition rising from whitecaps of interstellar foam, ... Our Milky 
Way Galaxy is littered with these stellar relics, called planetary nebulae. ... The 
nebula also is rich in clouds of dust, some of which form long, .... The Red 
Rectangle is an unusual example of what is known as a ..... Crab Nebula. [DOC] [TLE] Stellar Evolution  Cosmic Cycles of Formation - Chandra X-ray ... [PAR] interstellar medium is immersed in radiation from stars, magnetic fields, and 
cosmic ray ... nebulas are often associated with star Horsehead Nebula (CFHT) ... 
are composed mostly of molecular hydrogen. These clouds are the coolest (10 to 
20 K) and ..... the Trifid's central star disrupted the dense cloud from which the 
star. [DOC] [TLE] Text [PAR] The Physics of the Interstellar Medium HT 2004 Introduction/Overview ... which 
causes the hydrogen there to fluoresce, outlining the horse-head shape. ... 
Interstellar clouds consist of gas and dust, including many molecules, some of 
which .... faint reflection nebula that surrounds the Trifid, where partial absorption 
of light by... [DOC] [TLE] Observing the Sky from 40N/Print version - Wikibooks, open books ... [PAR] These regions are called

Question: Horsehead, Trifid & Crab are examples of these clouds of interstellar matter
Answer: Nebulae