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earth science s1
ms williams class
| Question | Answer |
|---|---|
| chondrule | small granule found in some meteoric rocks |
| planetesimal | one of the many small celestial bodies thought to have existed at an early stage in the development of the solar system |
| accretion | the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases |
| subduction zone | the region where oceanic plates sink down into the asthenosphere |
| what features are likely to form on the continental plate above the subduction zone | mountains |
| a newly discovered star has a solar mass of approximately 9.0. which of the following is the closest estimate to what you predict its lifespan to be? | 10,000,000 |
| objects like moons are heavily cratered. what conclusions about earth's early history does this evidence support | earth has experienced a similar rate of impacts |
| solar flares are large eruptions on the suns surface. from where does the energy originate that creates solar flares? | nuclear fusion in the suns core |
| through what mechanism is energy transferred from the sun to our earth? | radiation through space |
| which force keeps the planets of the kepler-90 system in their orbits? | gravitational force of the star kepler-90 |
| giants turn into | white dwarfs |
| main sequence turns into | supernova |
| super giants turn into | supernova |
| white dwarfs turn into | brown dwarfs |
| comet | small icy objects that orbits the sun and has a long "tail" of gas |
| asteroid | a small celestial body composed of rock and metal that orbits the sun |
| at the end of a star's life cycle, which process has stopped? | nuclear fusion in the stars core |
| fusion | creation of energy by joining nuclei of two hydrogen atoms to form helium |
| earth's surface looks diferent from the surface of moons like callisto and luna. which of the following earth processes accounts for the diference | erosion and plate tectonics |
| what makes tectonic plates move? | radioactive decay |
| what is the first event? | a nebula condenses to form a prostar |
| what is the second event? | matter around a protostar forms an accretion disk |
| what is the third event? | colliding rocks form planetesimals, then planets |
| what is the fourth event? | icy comets and asteroids smash into planets |
| what is the fifth event? | oceans form on earth |
| plate technoics/continental drift | a theory explaining the structure of the earths crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle |
| convergent boundary | a plate boundary where two plates move towards eachother |
| divergent boundry | a plate boundry where two plates move away from eachother |
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