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Words of the Day 8 th grade
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Word of the Day: Front Gravity force, heaviness, weight grav-i-tee gravitational
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Word of the Day: Back Definition: An attractive force between all objects that have mass. Other: “What goes up must come down”
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Word of the Day: Front Rotation spin, twirl roh-tey-shuh n rotate, rotational
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Word of the Day: Back Definition: the movement of something turning around on its axis Other: 1 rotation of Earth = 1 day
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Word of the Day: Front Revolution cycle, orbit rev-uh-loo-shuh n revolve
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Word of the Day: Back Definition: moving in a circular course around a central point Other: 1 revolution of Earth = 1 year
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Word of the Day: Front Astronomical Unit as-truh-nom-i-kuh l yoo-nit AU
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Word of the Day: Back Definition: The AVERAGE distance from Earth to the sun. Other: It must be an average because the distance between Earth and the Sun changes during the year.
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Word of the Day: Front Orbit revolution, path, track or-bit orbiting
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Word of the Day: Back Definition: The curved path of an object traveling around a point in space. Other: This curve is caused by gravity.
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Word of the Day: Front Solar Eclipse shading, darkening soh-ler ih-klips eclipsing
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Word of the Day: Back Definition: An exact alignment of the Earth, Moon, and Sun which causes the moon to cast a shadow on a portion of the Earth. Other: we cannot see the sun
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Word of the Day: Front Lunar Eclipse shading, darkening loo-ner ih-klips eclipsing
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Word of the Day: Back Definition: An exact alignment of the Moon, Earth, and Sun which causes the Earth to cast a shadow on all or part of the Moon. Other: This can only happen during the full moon.
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Word of the Day: Front Inner Planets in-er plan-its
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Word of the Day: Back Definition: These planets are closer to the sun and small and rocky. Other: Mercury, Venus, Earth, & Mars
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Word of the Day: Front Outer Planets ow-ter plan-its
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Word of the Day: Back Definition: These planets are farther from the sun and are large and gassy Other: Jupiter, Saturn, Uranus, Neptune
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Word of the Day: Front Independent Variable in-di-pen-duh nt vair-ee-uh-buh l
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Word of the Day: Back Definition: The part of the experiment that you are testing or changing Other: always compared to a “control”
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Word of the Day: Front Dependent Variable dih-pen-duh nt vair-ee-uh-buh l
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Word of the Day: Back Definition: The part of the experiment that you are measuring Other: can measure color, height, weight, temp., etc…
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Word of the Day: Front Quantitative Data numbers kwon-ti-tey-tiv dey-tuh quantity, quantitate
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Word of the Day: Back Definition: Using numbers to describe what is happening before, during, and after the experiment. Other: must include units: centimeters, °Celsius, grams…
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Word of the Day: Front Star stahr starless sun
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Word of the Day: Back Definition: A giant ball of gas that emits energy in the form of light Other: the closest star to us is our sun!
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Word of the Day: Front Light-year
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Word of the Day: Back Definition: the distance light travels in one year Other: used to measure distances between stars and galaxies
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Word of the Day: Front Spectroscope spek-truh-skohp
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Word of the Day: Back Definition: the tool scientists use to look at stars and determine what they are made of
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Word of the Day: Front Luminosity loo-muh-nos-i-tee luminous, illuminate brightness
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Word of the Day: Back Definition: the brightness of a star as compared to our sun
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Word of the Day: Front Galaxy Gal- uh k-see galactic
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Word of the Day: Back Definition: a cluster of BILLIONS of stars Other: spiral, elliptical, and irregular We live in the Milky Way Galaxy (spiral)
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Word of the Day: Front Reference Point ref-er-uh ns
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Word of the Day: Back Definition: a starting point to describe the position of an object
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Word of the Day: Front Position location puh- zish- uh n
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Word of the Day: Back Definition: the location of something. Other: determined by a reference point, (RP) direction from the RP, and distance from the RP
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Word of the Day: Front Distance dis-tuh ns
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Word of the Day: Back Definition: the total length of the path taken Other: total = 5m + 4m + 5m = 14 m 5 m 4 m 5 m
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Word of the Day: Front Displacement dis-pleys-muh nt
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Word of the Day: Back Definition: the shortest distance between starting position and ending position Other: draw a straight line
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