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ch.1 Sec 1-4 vocab
ch.l Sec 1-4 vocab
Question | Answer |
---|---|
life science | the study of living things |
scientific methods | a series of steps followed to solve problems |
hypothesis | an explanation that is based on a prior scientific research or observation and that can be tested |
controlled experiment | an experiment that test only one factor at time by using a comparison of a controlled group with an experimental group. |
variable | a factor that changes in an experiment in order to test a hypothesis |
model | a representation of an object or a system |
theory | an explanation that ties together many hypotheses and observations |
law | a summary of many experimental results and observations |
technology | the application of science for practical purposes |
compound light microscope | is an instrument that magnifies small objects so that they can be seen easily |
electron microscope | a microscope hat focuses a beam of electrons to magnify objects |
area | a measure of the size of a surface or a region |
volume | a measure of the size of something in a three-dimensional |
mass | a measure of the amount of matter in an object |
temperature | a measure of how hot or cold something is |