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8th Physical Science
| Term | Definition |
|---|---|
| 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 a measurement unit. |
| Inference | not a fact, but a interpretation of what the direct observations mean |
| Law | Describes what scientists 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 an experiment that changes. |
| Manipulative Variable | A factor in a controlled experiment that;s intentionally changed by the experimenter. |
| Dependent Variable | A resulting factor in a controlled experiment that's observed and measured to see if it changes due to the manipulation of another variable. |
| Theory | A well tested explanation for a wide ranges of observations or experimental results. |
| Question | To ask information |
| 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 with mass that takes up space. |
| Physical Properties | Any changes that alters somethings form or appearance of matter, but doesn't change anything it's made out of. |
| Chemical Properties | A change in matter producing two or more new substances |
| Work | A force exerted on an object that causes it to move. |
| Force | A push or pull exerted on an object. |
| Newton | A unit of force required to move 1 kilogram 1 meter. |
| Newton's 1st Law | An object at rest, stays at rest. An object in motion stays in motion unless acted on by an unbalanced force. |
| Newton's 2nd Law | Acceleration is produced when a force acts on mass. The greater the mass the greater the force needed. |
| Newton's 3rd Law | For every action there is an equal and opposite reaction. |
| Gravity | The force that pulls objects towards each other. |
| Mechanical Advantage | The ratio of the out put force produced by a machine to the applied input force. |
| Accuracy | The quality or state of being correct or precise. |
| Calibration | The action or process of calibrating an instrument or experimental readings. |
| Graduated Cylinder | A piece of laboratory equipment used to collect the volume of liquid. |
| International System of Measurement | The modern form of the Metric unit. |
| Liquid | Flowing freely but keeping the same volume. |
| Mass | A coherent, typically large body of matter with no definite shape. |
| Matter | A physical substance that occupies space. |
| Meniscus | The curved upper center of a liquid in a tube. |
| Newton | The SI unit of force. |
| Precision | The quality or condition of being exact. |
| Triple-beam-balance | A scale used to precisely measure weight. |
| Unit | A quantity chosen as a standard in terms in which other quantities may be measured. |
| Volume | The amount of space an object occupies |
| Weight | The quantity of matter contained in something / The heaviness of a person or thing. |
| Matter | Anything that has mass and volume (take up space) |
| 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 combined |
| Element | The simplest type of pure substance |
| Compound | Two or more elements chemically combined |
| Homogeneous Mixture | Two or more substances not chemically combined, but appearing evenly blended |
| Heterogeneous Mixture | Two or more substances not chemically combined, appearing non-uniform with physically distinct substances included |
| Compress | To squeeze or press together |
| Boiling Point | The temperature at which water turns to gas |
| Condensation Point | The point at which gas turns to liquid |
| Conductor | A material that allows electricity or heat to pass through easily |
| Density | An objects mass compared to its volume |
| Depostition | A gas changing into a solid with out changing into a liquid |
| Ductile | Able to be pulled into long thin wires |
| Flexible | Able to bend without breaking |
| Freezing Point | Temperature at which liquid turns to solid |
| Insukator | A material that doesn't allow electricity or heat to pass through easily |
| Kinetic Theory | A physics theory that all matter is made of moving particles in random motions |
| Luster | Shininess, the property of something that shines a reflective light |
| Magnetic | A material that is attracted to magnets |
| Malleble | Able to be hammered or pressed into flat sheets |
| Melting Point | Temperature at which a solid turns into a liquid |
Created by:
aubiefan
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