Science 8th Chp. 20
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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rotation | an object that spins on its axis
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revolution | an object that moves around a star
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Sumerians | thought the earth was flat and they acknowledged celestial movement but attributed it to the gods
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Ptolemy | made the geocentric model where the earth is in the center of everything with all other objects revolving around us
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Copernicus | made the heliocentric model where the sun is in the center and earth is just another planet
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ellipse | squished egg
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Galileo | used his newly developed telescope and discovered Jupiter's 4 largest moons
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Tycho Brahe | made accurate observations and records of locations of planets
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Kepler | used Brahe's data along with his own to show that planets move in ellipses
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Core (sun) | the central area of the sun where nuclear fusion takes place
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radiation zone | very tightly packed region-plasma phase- of the sun where energy is transferred mainly in the form of light
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convection zone | outermost layer of the sun's interior that moves heat towards the surface in a current
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photosphere | visible surface of the sun
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chromosphere | usually not visible due to light of the photosphere
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corona | outermost part of sun's atmosphere/ visible as halo of light during eclipse
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sunspot | dark areas on the surface of the sun that appear to be burnt out and they always travel in pairs
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solar prominence | a loop of plasma coming off the surface of the sun gets pulled back in by gravity
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solar flare | a column of plasma coming from the surface of the sun near a sunspot
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solar wind | steady stream of electrically charged particles/ where ions enter at the earths poles and the ions change into light which is known as an aurora
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solar radiation | any form of electromagnetic radiation coming off the sun
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terrestrial | rocky surface with metal core, magnetic field, and atmospheres
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greenhouse effect | phenomena where heat enters clouds and gets trapped
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Io | most volcanic
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Ganymede | largest moon in solar system
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Europa | moon that may have life
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Bode | predicted that there were planets after mars
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Piazzi | discovered Ceres
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Ceres | largest asteroid
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meteoroids | bodies of rock and metal that travel through our solar system
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meteor | a meteoroid that enters earths atmosphere and is destroyed by friction
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meteorite | a rare occasion when the meteor hits earths surface
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comets | dirty snowballs
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Oort cloud | "comet nursery" beyond the edges of Pluto/ cold( made of dust, rock, and ice)
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nuclei | frozen mass at the center of a comet
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coma | outer edges of slush when heat hits the nuclei
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tail | formed when the solar wind pushes the coma away from the nuclei
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Goldilocks Conditions | conditions that are optimal to human life
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Probe | unmanned space explorer
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shuttle | manned space explorer
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nuclear fusion | small mass nuclei smash together to form large mass nuclei
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mnauroth
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