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8th physical science

Qualitative observations Made by gathering information that can be recorded using descriptive language
Quantitative observations Made by gathering information that can be recorded as a number with with a measurement unit
Inference Not a fact, but an interpretation of what the direct observations mean
Scientific law Describes what scientists expect to happen every time under a particular set of conditons
Constant Part of an experiment that is held in the same condition for control and experimental
Variable Part of an experiment that changes
Manipulated Variable A factor in a controlled experiment that is intentionally changed by the experimentor
Theory A well tested explanation for a wide range of observations or experimental results
Inquiry To ask for information
Responding variable A resulting factor in an controlled experiment that is observed and measured to see if it changes due to the manipulation of another variable
Experiment A course of action completed in order to test a hypothesis
Control A standard to which all other levels are compared in a scientific experiment
Matter Anything that has mass and takes up space
Physical properties A characteristic of a pure substance that can be observed without changing it into another substance
Chemical properties A characteristic of a pure substance that describes its ability to change into different substances
Atoms The basic particle from which all elements are made
Weight A measure of the force of gravity on you
Mass The measurement of the amount of matter in an object
Volume Length x Width x Height
Mechanical advantage The ratio of the output force produced by a machine to the applied force
Newtons A unit of force required to move 1 kilogram 1 meter squared
Work Force exerted on an object on an object that causes it to move
Force a push or pull exerted on an object
Gravity The force that pulls objects towards each other
Newton's law 1 An object at rest stays at rest or an object that is moving at a velocity in a straight line keeps moving at that velocity unless another object acts on it
Newton's law 2 The amount of force needed to make an object change its speed depends on the mass of an object and the acceleration required
Newton's law 3 For every action (or force), there is an equal and opposite action (or force)
Created by: 3154396