Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
science ND-Beth 8th
science studyguide
| Question | Answer |
|---|---|
| a planet turning on its axis | rotation |
| a planet following an orbit around a star | revelation |
| first to study the solor system and though earth was in center motionless and thought earth was flat | greeks |
| disproved earth was flat | aristotle |
| invented the geocentric model, thought earth is in center and planets in perfectly circular orbits | tolmy |
| invented the heliocentric model thought earth was in center and earth was only planet | copernicus |
| discovered jupiters largest moons | galileo |
| used tycho Brahes data and proved planets travel in ellipses | kepler |
| layers of the sun in order | core,radiation zone, convection zone, photosphere, chromosphere, corona |
| the center of the sun, cite of nuclear fusion. | core |
| small mass of nuclei unite into larger nuclei | nuclear fusion |
| thickest layer of the sun and tightly packed with He atoms | radiation zone |
| energy moves particle to particle toward surface in a convection current | convection zone |
| visible surface of sun | photosphere |
| the "colored sphere" and 1st layer of sun's atmosphere not visible | cromosphere |
| outermost layer of suns atmosphere, looks like halo only seen during eclipses | corona |
| areas on the sun that are cooler than surrounding surface,blackspots,always in pairs,usually near a solar flare,11year cycle | sunspot |
| occurs when solar wind enters earth's atmosphere and changes into colored lights | aurora |
| steady stream of electrical charged particles coming off the sun | solar wind |
| closest to sun,i year=1u1/2 earth years ,surfaace covered with craters, no atmosphere, no satellites wimpy magnetic field,has temp extremes(430C to -180C) | mercury |
| 2nd from sun,3rd brightest object in sky,"green house effect caused by thick clouds,orbits 2nd closest to earth,CO2 based atmosphere,no satellites,retrograde motion | venus |
| surface is dry+dusty+desertlike,similar axis tilt,polar ice caps,1/2 diameter of earth,thin CO2 atmosphere,2 moons(phobos + deminos),hase canyons on surface,largest surface feature in system | mars |
| largest planet,failed star,gives off more energy than receives from sun,"fake" magnetic field,16 moons,12 earth years to orbit sunhome of Great Red Spot | jupiter |
| 2nd largest overall,dramitic ring system made of ice and dust,rings are wide but thin,31 moons,29 earth years to orbit sun | Saturn |
| Saturn's largest moon,larger than pluto and mercury,N atmosphere | titan |
| 4x diameter of earth,mostly H+He, fun leaf color aquamarine,16 hour day,ring system, strange axis tilt,21 moons. | uranus |
| 4x diameter of earth,mostly H+He, bright blue,18 hour day,ring system,"scooter" the dark spot,8 moons | neptune |
| coldest place in the solar system,-200C liquid nitrogen | triton |
| recently demoted to dwarf planet>:(,only 3000 km,density?,believed to be frozen Ne,Ar,Kr, has 1 moon-Charon,A|K|A dual planet,248 years to orbit sun,extreme elliptical orbit,crosses orbite with neptune,believed to be stolen from kuiper belt | pluto |
| comet nursery,collection of comet nuclei,just past pluto | Oort cloud |
| cloud of dust+gas in space,created by supernova,building blockes for celestial objects | nebula |
| can only happen in large mass stars,unstable fussion causes explosion,creates nebula,heavy elements are created during explosion | supernova |
| Hertzsprung Russel,uses star color and temp to gain info on stars,color is result of temp | H-R Diagram |
| dirty snowball | comet |
| an object with gravity so strong not even light can escape,result from imploded neutron star, | black hole |
| quasi stellar radio source, discovered in 1960,most distant and fastest moving objects known, | quasar |
| collection of stars that seem to make a pattern | constellation |
| matter that gives off no electromagnetic radiation,23% of all matter | dark matter |
| a substance that cant be broken down into simpler substance w/o loosing its properties | element |
| two or more elements chemically combined | compound |
| 1-10 scale where 1 is softest and 10 is the hardest | Moh's scale |
| how the surface of a mineral reflects light | luster |
| true color, the color of the powder created when the mineral is scratched along porcalin | streak |
| a mineral that breaks along an irregular surface-different each time | fracture |
| heating the mined rock to separate the ore from junk rock | smelting |
| mixture of two or more elements w/ atleast 1 metal | alloy |
| three main types of rocks | igneous,sedamentary,and metamorphic, |
| formed from fire, two types intrusive and extrusive | igneous |
| presence of layers,makes up over 75% 0f rocks on earth,most start out as igneous | sedimentary |
| formed by heat and pressure,2 divisions foliated and nonfoliated | metamorphic |
| a tabular display of the chemical elements, organized on a basis of their properties. | Periodic Table |
| any mineral mined for profit | ore |
| the number of protons | atomic number |
| part of an atom with a +-charge | protons |
| part of an atom with a - charge | electrons |
| part of an atom with a neutral charge | neutrons |
| the electrons that form the bond | valence electrons |
| the brightness of a star as it is viewed from earth | apparent magnitude |
| true brightness of a star,luminosity if all stars were equal distance from earth | absolute magnitude |
Created by:
dominator11
Popular Science sets