science ND-Beth 8th Word Scramble
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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
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