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8th Physical Sci

Matter Anything that has mass and takes up space
Physical properties characteristics of a pure substance that can be observer without changing it into another Substances (No Change)
Chemical Properties Characteristics of a pure substance that describes its ability to change into different substances/new substances
Elements Pure substance that cannot be broken down into any other substance by chemical physical means
Atoms basic particle from which all elements are made
Weight measurement of the force of gravity on you
mass measurement of the amount of matter in the object
units of mass to measure the properties of matter
qualitative observations made by gathering information that can be recorded using descriptive language
quantitative observations made by gathering info that can be recorded as a number with a measurement unit
Inference Not a fact but an interpretation of what the direct observations mean
scientific law describes what scientist expect to happen every time under a particular set of conditions
constant part of an experiment that is held in the same condition for control and experimental
variable part of the experiment that changes
manipulative variable a factor in a controlled experiment that is intentionally changed by the experimenter
theory a well tested explanation for a wide range of observation or experimental results
inquiry to ask for information
dependent variable a resulting factor in a controlled experiment that is observed and measured to see if it changes due to the manipulation of another variable
experiment a course of action course of action completed in order to test a hypothesis
control a standard to which all other levels are compared in a scientific experiment
Newtons unit of force required to move 1 kilogram 1 meter squared
Work force on an object that causes it to move
Force push or pull exerted on an object
Gravity Force that attracts objects
Newton's 1st law a object/body that is in rest stays in rest unless acted upon a object that is in motion stays in motion
Newton's 2nd law The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
Newton's 3rd law For every action there is an equal and opposite re-action
Mechanical Advantage the ratio of the output force produced by a machine to the applied input force
Created by: Corrado Tuccitto