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8th Gr. Voc 1-14

Weeks 1-3

scientific method a series of steps that a scientist follows to solve a problem or answer a question
independent variable the variable the experiment is designed to test: the factor that the experimenter changes or manipulates
dependent variable the factor that responds to changes in the independent variable; the factor that is measured in an experiment in response to the independent variable
control group a standard set-up in which all variables are controlled and to which the experimental results are compared
experiment a procedure designed to test a hypothesis
quantitative data information or data that is expressed using numbers
qualitative data information or data that is described in words rather than with numbers
hypothesis a possible answer or tentative explanation to a scientific question
conclusion a statement that explains the observations or the relationship between the variables; an explanation of what the results show
hydrosphere the portion of Earth that contains water
cohesion the tendency of water molecules to form weak bonds and stick together
adhesion the tendency of water to stick to other substances
polarity uneven distribution of charges across a molecule
surface tension the force that acts on the particles at the surface of a liquid
Created by: karen_lindley