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8th Physical Sci
NONE
| Term | Definition |
|---|---|
| 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 |
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