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Science
Term | Definition |
---|---|
Quantitative Observation | Made by gathering information that can be recorded using measurements and units |
Qualitative Observation | Made by gathering information that can be recorded using descriptive language |
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 conditions |
Constant | Part of an experiment that is held in the same condition for control and experimental |
Variable | Part of the experiment that changes |
Independent Variable (MV) | A factor in a controlled experiment that is intentionally changed by the experimenter |
Scientific Theory | A well tested explanation for a wide range of observations or experimental results |
Dependent Variable (RV) | A resulting factor in a controlled experiment that is observed and measured to see if it changes due to the manipulation of another variable |
Inquiry | To ask for 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 that has mass and takes up space |
Physical Property | Any change that alters the form of appearance of matter but does not make any substance in the matter into a different substance or a characteristic of a pure substance that can be observed without changing it into another substance |
Chemical Property | A change in matter that produces one or more new substances or a characteristic of a pure substance that describes its ability to change into different substances |
Weight | The amount of gravity on an object |
Mass | The amount of matter (atoms) in a substance; measured in grams and kilograms |
Grams | Unit of mass or an SI unit to measure mass; 1g = 0.001kg; there are 1000g in 1 kilogram |
Accuracy | The quality or state of being correct or precise |
Calibrate | To mark off lines on measuring equipment for the desired unit |
Graduated Cylinder | Equipment use to measure liquid volume |
International System of Measurement | Base unit for measuring mass (kilogram) |
Liquid | A state of matter having definite volume, indefinite shape, with particles touching, and sliding around each other |
Mass | The amount of matter in an object |
Matter | Anything that has mass and takes up space |
Meniscus | The curve on the upper surface of a liquid in a container caused by surface tension |
Newton-a unit of measurement | A unit of force required to move 1 kilogram 1 meter |
Precision | The quality, condition, or fact of being exact and accurate |
Triple beam balance | Scale used to measure accurate quantities of mass |
Unit | A single, undivided whole; a quantity chosen as a standard for measurement |
Volume | The amount of space an object takes up or the amount of space a container holds |
Weight | The measure of the pull of gravity on a substance |
Mixture | Matter that consists of two or more substances not chemically combined |
Matter | Anything that has mass and volume(takes up space) |
Pure Substance | A substance made of only one kind of material having definite proportional amounts and properties |
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 to be evenly blended |
Heterogeneous mixture | Two or more substances not chemically combined, and appearing non-uniform with physically distinct substances included |
Centimeter cubed (cm3) | A unit of volume derived from length times width times height |
Compress | To squeeze or press together |
Condensation Point | Temperature at which a gas to turn liquid |
Conductor | A material that does allow electricity or heat to pass through easily |
Density | An object’s mass compared to its volume. Mass divided by volume is density |
Deposition | A gas changing into a solid without changing into a liquid |
Dissolve | To break into pieces too small to be seen |
Ductile | Able to be pulled into long, thin wires |
Freezing Point | Temperature at which a liquid turns to solid |
Gas | A state of matter having indefinite volume, indefinite shape, with particles bouncing around and not touching each other |
Gram per centimeter cubed | g/cm3; a derived unit used to measure density of a solid |
Gram per milliliter | g/mL; a derived unit used to measure density of a liquid |
Insulator | A material that does not allow electricity or heat to pass through easily |
Kilogram | The SI base unit to measure mass; 1 kg = 1000g |
Kinetic Theory | A physics theory that all matter is made of moving particles in random motion |
Liter | The SI unit to measure volume of liquids |
Luster | Shininess; the property of something that shines with reflected light |
Magnetic | Material that is attracted to magnets |
Malleable | Able to be hammered or pressed into flat sheets |
Melting Point | Temperature at which a solid turns to liquid |
Milliliter | An SI unit to measure volume of liquids; 0.001 of a liter; there are 1000 mL in 1 Liter. |
Phases of matter | Solids, liquids, gases, and plasma; also called states of matter |
Plasma | A state of matter consisting of ionized (electrically charged) particles |
Solid | A state of matter having definite volume, definite shape, with particles vibrating, touching and locked into place |
Soluble | Able to dissolve |
States of matter | Solids, liquids, gases, and plasma; also called phases of matter |
Sublimation | Turning from solid to gas without turning into a liquid |
Texture | How something feels, especially whether it is bumpy or smooth |