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27 Cards in this Set

  • Front
  • Back
4 : n. a condition in which opposing forces are equal to each other
2: v. : to arrange so that one set of elements exactly equals another
: any of a group of extinct often very large mostly land-dwelling long-tailed reptiles of the Mesozoic era
Earth gravity
3 a : the gravitational attraction of the mass of a heavenly body (as the earth) for bodies at or near its surface b : a force of attraction between particles or bodies that occurs because of their mass, is stronger as mass is increased, and is weaker as the distance between the objects is increased
1 : surroundings: <living in a rural environment>
2 : the surrounding conditions or forces that influence or modify: as a : the whole complex of factors (as soil, climate, and living things) that influence the form and the ability to survive of a plant or animal or ecological community b : the social and cultural conditions that influence the life of a person or human community
: to harden into or be hardened into a solid (as ice) by loss of heat
1 : to make or become warm or hot
1 a : something that makes vision possible
2. electromagnetic radiation of any wavelength (as infrared, visible, ultraviolet, and X-rays) and traveling in a vacuum with a speed of about 186,000 miles (300,000 kilometers) per second;
1: a point or extent in space
2. point determined by longitude or latitude
b : a combination of parts that transmit forces, motion, and energy to do some desired work
1 : a piece of some material (as the mineral iron oxide) that is able to attract iron; especially : a mass of iron or steel so treated that it has this property
1 : any of various large hairy extinct mammals of the elephant family with very long tusks that curve upward
1 a : the earth's natural satellite that shines by reflecting light from the sun and revolves about the earth in about 29½ days
: the whole body of salt water that covers nearly three fourths of the surface of the earth
1 a : the manner in which something is placed or arranged
3 : the point or area occupied by something
Properties of light
• Light travels in a straight line unless it strikes an object; Light can be reflected by a mirror, refracted by a lens, or absorbed by the object.
1 : to separate forcibly from a natural or firm attachment
2 a : to use force on so as to cause or tend to cause motion toward the force
Salt water
1.of salt water: containing or involving salt water
2.Water that contains a relatively high percentage (over 0.5 parts per thousand) of salt minerals
1 : loose material in grains produced by the natural breaking up of rocks
1 a : something that covers or protects b : a place that provides food and lodging
1 : the upper atmosphere : the vast arch or dome that seems to spread over the earth
1 a : a natural body visible in the sky especially at night that gives off light or shines by reflection
Sun’s position
The sun's position in the sky is determined by three factors: the time of day, the time of year, and the latitudinal position of the reference point
Sun’s size
The Sun's diameter is 864938 miles (1391980 km). This is almost 10 times larger than the planet Jupiter and about 109 times as big as the Earth.
an instrument for measuring temperature
Weather patterns (seasons)
Weather over a period of time:
n. One of the four natural divisions of the year, spring, summer, fall, and winter, in the North and South Temperate zones.