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17 Cards in this Set
- Front
- Back
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scientific method
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a series of steps followed to solve problems.
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life science
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the study of living things.
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hypothesis
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an explanation that is based on prior scientific research or odservations, and that can be tested.
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controlled experiment
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an experiment that tests only one factor at a time by using a comparison of a control group with an experimental group.
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variable
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a factor that changes in an experiment in order to test an hypothesis.
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theory
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an explanation that ties together many hypothesis and observations.
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model
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a pattern, plan, representation or description designed to show the structure or workings of an object system or concept.
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independent variable
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the variable that is varied or manipulated by the reasercher.
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dependent variable
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the responses of the experiment that are measured.
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controlled variable
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quantities that a scientist wants to remain constant in an experiment.
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technology
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the application of science for practical purposes; the use of tools, mechines, materials, and processes to meet human needs.
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microscope
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an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen, or to small to be seen distinctly with the unaided eye.
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compound light microscope
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an instrument that magnifies small objects so that they an be seen easily with two or more lenses.
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electron microscope
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a microscope that focuses a beam of electrons to magnify objects.
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area
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a measure of the size of a surface or a region.
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volume
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a measure of the size of a body or region in three dimensional space.
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temperature
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a measure of how hot or cold something is; a measure of the average kinetic energy of particles in an object.
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