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36 Cards in this Set

  • Front
  • Back
theory
logical explanation for events that occur in nature
law
summarizing statement of observed experimental facts that has been tested many times and is generally accepted as true
geology
the study of the earth.
meteorology
study of the earth's atmosphere,weather, and climate.
oceanography
study of the earths oceans including their physical features,life forms,and natural resources
astronomy
study of the planets,stars,and other objects in space
scientific method
the systematic approach to problem solving.
hypothesis
proposed solution to a scientific problem
variable
factor being tested in an experimental setup
control
experiment run without a variable in order to show that any data from the experimental setup were due to the variable being tested
data
recorded observations and measurements
metric system
the scientific system of measurement
meter
the basic unit of length in the metric system
centimeter
one hundredth of a meter
millimeter
one thousandth of a meter
kilometer
one thousand of a meter
light year
the distance light travels in one year.
liter
the basic unit of volume
milliliter
measures volumes smaller than a liter
kilogram
basic unit of mass in the metric system
gram
measures the mass of small objects, such as a nickel
milligram
one-thousandth of a gram
weight
a measure of the attraction between two object due to gravity
newton
the basic unit of weight in the metric system
density
the relationship between mass and volume
Celsius
in the metric system the scale in which temperature is measured on
cubic centimeter
metric unit used to measure the volume of solids;equal to a milliliter
dimensional analysis
the skill of converting one unit to another
conversion factor
a fraction that always equals 1.
refracting telescope
a series of lenses is used to focus light.
reflecting telescopes
a series of mirrors is used to collect and focus light from distant objects
electromagnetic spectrum
arrangement of electromagnetic waves that includes visible light, ultraviolet light, infrared light, X rays, and radio waves.
radio telescope
telescope that gathers radio waves from distant objects on order yo produce images of those objects
infrared telescope
telescope that gathers infrared light from distant objects in order to produce images of those objects
ultraviolet telescope
telescope that gathers ultraviolet light from distant objects in order to produce images of those objects
X ray telescope
telescope that gathers X rays from distant objects in order to produce images of those objects