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ch 1 LS HRW
ch 1 LS HRW
15
Science
8th Grade
04/11/2012

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Cards

Term
area
Definition
a measure of the size of a surface or a region
Term
compound light microscope
Definition
an instrument that magnifies small objects so that they can be seen easily by using two or more lenses
Term
controlled experiment
Definition
an experiment that tests only one factor at a time by using a comparison of a control group with an experimental group
Term
electron microscope
Definition
a microscope that focuses a beam of electrons to magnify objects
Term
hypothesis
Definition
an explanation that is based on prior scientific research or observations and that can be tested
Term
law
Definition
a summary of many experimental results and observations
Term
life science
Definition
the study of living things
Term
mass
Definition
a measure of the amount of matter in an object
Term
model
Definition
a pattern, plan, representation, or description designed to show the structure or workings of an object, system or concept
Term
scientific methods
Definition
a series of steps followed to solve problems
Term
technology
Definition
the application of science for practical purposes; the use of tools, machines, materials and processes to meet human needs
Term
temperature
Definition
a measure of how hot or cold something is
Term
theory
Definition
an explanation that ties together many hypotheses and observations
Term
variable
Definition
a factor that changes in an experiment in order to test a hypothesis
Term
volume
Definition
a measure of the size of body or region in 3-dimensional space
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