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Physical Science chp

this is chapter 1 sec 1,2,3 (8th)

science the knowledge obtained by observing natural events in order to discover facts that can be tested
technology the application of science for practical uses
law an equation or statement that predicts events under certain conditions
theory system of ideas that explains related observations and is acquired through investigation
critical thinking make a judgement based on fact ans asses claims critically
scientific methods a series of steps followed to solve problems
steps of the scientific method collect data, hypothesis, test, and state conclusion
variable factor that changes the experiment in order to test a hypothesis
length measure between to straight points
mass measure of amount of matter
volume measure of size of a region in a 3D space
weight measure of gravitational pull on an object
precision the exactness of a measurement
significant figure a prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement
accuracy description of how close a measurement is to the true value of the quantity measured
scientific notation the way of expressing a number by multiplying it by ten with the correct power
Created by: purplecrush