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Sceince
Unit C Chapter 4
| Question | Answer |
|---|---|
| Asteriod | a rocky object that revolves around the sun |
| Meteoriod | a small piece of rock or metal that travels in space around the sun |
| elliptical | oval-shaped, like a flattened circle |
| model | a representation of how something looks or works |
| metor | a bright streak of light that passes through Eath's atmosphere |
| comet | a ball of ice, dust, and gases through space and orbits the sun |
| meteorite | a piece of meteoroid that lands on Earth after passing through the atmosphere |
| light year | the distance light travels in 1 year |
| constellation | stars, that appear to be in groups when viewed from Earth |
| galaxy | a group of billions of stars, dust, and gases in space held together by gravity |
| spectroscope | an instrument that seperates light into a pattern of lines of diffrent colors |
| refraction | the bending of light as it passes from one material to another; a way to gather to gather and focus light |
| reflection | the bouncing of light off a surface; a way to gather and focus light |
| what are the 3 models of the solar system | ptolemy's model, Copernicus's model, modern solar system model |
| what are the planets like | the planets are bright, they shine light from the sun.Some planets are cold, some are hot, some are in between |
| list the 3 objects besides planets that are found in thye solar system | asteroids, metoeroids, and meteors |
| list 3 ways the sun effects Earth | the sun makes the Earth bright, hot and the sun sometimes makes things on earth melt because of it's heat |
| how does the sun compare to other stars | the sun's brightness is average from other stars, and like other stars the sun is a hot ball of glowing gases |
| what units do scientists use to measure distance in space | they use kilometers to measure distance in space |
| what properties do sientists use to measure distance in space | brightness, color, and size |
| compare a galaxy and a constellation | a constellation is when stars appear to be in groups when seen from earth and a galaxy is a group of billions of stars, dust and gases in space held together by gravity |
| what do scientists learn from using spectroscope to analyze light | because it can seperate light from a glowing star into bands or patterns of light |
| how do telescopes work | they can record light and other radiation from objects in space |
| how are images from a telescope recorded | you would often use film or photographic plates |
| why do telescopes from space produce better images than those on earth | on earth they are often sometimes blurred images as light pases through the atmosphere |
Created by:
jpriore
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