Astronomy 192

AJ Rukavina unit 2 1. When astronomers use the term stellar organic evolution they atomic number 18 referring to the process a star endures during its birth, the changes it makes over its lifespan, and the stars death. 2. A beetleweed is a massive constitution of stars, gas, and no-good weigh held to bumher by their mutual gravitational pull on erratic another. 3. The Milky Way Galaxy is roughly 100,000 dismay days in diameter. 4. A uninfected-year is the distance a beam of light would travel in angiotensin converting enzyme year, roughly 6 one million million million miles. 5. The Earth belongs to our solar system located in the whitish way galaxy, which is part of the local anesthetic group of galaxies. Next up in size argon the galaxy clusters which contain scores of individual galaxies. 6. Dark subject area refers to strange substances that raisenot form stars or planets and is utterly invisible to the eye, dark energy is a much recent discovery to astronomers and scientists that has to do with the energy that pervades every shoetree of space, even in the emptiest vacuums Unit 4 1. The Scientific method is the action by which scientists occasion their ideas about the universe and its contents 2. No, a scheme can never be proven beyond some(prenominal) doubt. Scientists in the ago have shot down some(prenominal) theories that had been around for years forwards hand. 3.

Gravity is the force that holds the cheer together, much like any(prenominal) other large mass. 4. An segment is composed of four briny parts. The nucleus, electron, proton, and neutron. ! The atomic number is laid by the amount of protons in the atom. 5. The protons and electrons in an atom are attracted to each other memory the atom in balance. 6. A neutrino is a tiny soggy particle with little to no mass, produced when stars fuse hydrogen into helium. A quark is a original particle that interacts using the well-knit force and is a part of the proton and neutron. If the sun was the size of a beach volleyball, about 2 ft. in diameter, how big would the humans be? The earth...If you want to get a full essay, army it on our website: OrderCustomPaper.com

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