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8th Physical Sci


Matter Anything that has mass and takes up space
Weight The force that gravity exerts on an object
Physical Properties A Characteristic of a pure substance That is possible to change the look or appearance, But does not change what it is
Chemical Properties A Characteristic of a pure substance that is able to be changed into another substance
Qualitative Observations Data gathered by using the five senses and that is recorded
Quanitative Observations Data gathered and recorded by the use of numbers
Inference A prediction made based on past experience
Scientific law Something A Scientist Expects to happen every time under certain conditions
Constant Something in an experiment that does not change for control and experimentation
Variable A part of an experiment that changes
Independent Variable A factor in an experiment that is changed by the scientist
Newton A unit of force required to move 1 kilogram 1 meter
Gravity The force pulls objects towards each other
force A push or pull exerted on an object
newton's 1st law "When something is in motion is tends to stay in motion while something at rest tends to stay at rest"
newton's 2nd law "When a change in velocity occurs the change will stay constant until something changes the objects velocity"
newton's 3rd law "For every action there is an equal and opposite reaction"
Mechanical Advantage The ratio of the output of force using a machine to the input force
Work the force exerted on an object that make it move
Accuracy How well you prove or present something
Calibration The ratio of the numbers and space
Triple-beam-balance A Item used for measuring weights in grams
Meniscus A point where the bottom of the water is measurable
ISM International System of Measure A universal way to measure units used all around the world
Precision How consistent repeated measurements
Accuracy How close something is to being correct
Pure substance A substance made of only one kind of material having definite proportional amounts and properties
mixture Matter that consists of two or more substances not chemically bonded
element The simplest type of pure substance
compound Two or more elements chemically bonded
homogeneous mixture two or more substances not chemically combined, but appearing to be evenly blended
heterogeneous mixture two or more substances not chemically combined, and appearing non-uniform with physically distinct substances included
Created by: I am bored.com