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Unit 1
Physical Science, Measurement, and Scientific Method
| Word | Definition |
|---|---|
| physical science | The study of matter and energy |
| chemistry | The study of matter and its changes |
| physics | The study of forces and energy and how they affect matter |
| matter | Anything that occupies space and has mass |
| gravity | A force of attraction of the earth for a given object, or of one mass to another |
| energy | The ability to do work or cause change |
| kinetic energy | Energy of motion |
| potential energy | Energy an object has due to position |
| Law of Conservation of Energy | Energy cannot be created or destroyed, but can change from one form to another |
| weight | A measure of the force of gravity acting on an object |
| spring scale | The tool used to measure force |
| newton (N) | The basic metric unit of measure of force |
| mass | A measure of the amount of matter in an object |
| balance | The tool used to measure mass |
| kilogram (kg) | The basic metric unit of measure of mass |
| length | The measure of the distance from one point to another |
| meter stick | A tool used to measure length |
| meter | The basic metric unit of measure for length |
| volume | A measure of the amount of space occupied by an object |
| graduate | A tool used to measure volume |
| liter (L) | The basic metric unit of measure of volume |
| meniscus | The curved surface found at the top of a contained liquid |
| scientific method | A process used for gathering evidence that leads to understanding |
| observation | An examination of something using your senses |
| hypothesis | A possible answer to a problem and a statement the can be tested |
| experiment | A controlled procedure designed to test a hypothesis with measurable results |
| data | Carefully documented results of an experiment used to draw a conclusion |
| conclusion | A statement that proves if the data supports the hypothesis |
| theory | A hypothesis that has been tested and supported many times |
| control group | The group in which all variables remain the same |
| experimental group | The group in which one variable has been changed |
| infer | The process of drawing conclusions based on experience and prior knowledge |
| variables | All factors that can influence the outcome of an experiment |
| independent variable | The variable that is deliberately changed by the experimenter; the manipulated variable (x-axis) |
| dependent variable | The variable being measured and observed; the outcome or responding variable (y-axis) |
| constant variables | The variables that remain the same throughout the experiment; constants or controlled variables |
Created by:
steach311
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