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Science 8
| Term | Definition |
|---|---|
| qualatative | made by gathering information that can be recorded using descriptive language |
| quanatative | made by gathering information 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 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 |
| 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 observations or experimental results |
| inquiry | to ask for information |
| responding 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 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 |
| mass | the amount of matter in an object |
| physical properties | any change that alters form or appearance or matter but does not make any substance in the matter into a different substance |
| chemical properties | a change in matter that produces one or more new substances |
| weight | amount of gravity on an object |
| units of mass | grams |
| accuracy | the extent to which a given measurement agrees with the standard value for that measurement |
| calibration | to determine the caliber of (a tube) |
| graduated cylinder | a measuring instrument for measuring fluid volume |
| International System Of Measurement | an internationally accepted system of physical units, using the meter, kilogram, centimeter, etc as the basic units of length, mass, time, amount of substance, etc. |
| liquid | A phase of matter in which atoms or molecules can move freely while remaining in contact with one another. A liquid takes the shape of its container. |
| mass | In physics, the property of matter that measures its resistance to acceleration. Roughly, the mass of an object is a measure of the number of atoms in it. The basic unit of measurement for mass is the kilogram. |
| matter | something that occupies space |
| meniscus | the convex or concave upper surface of a column of liquid, the curvature of which is caused by surface tension. |
| Newton- a unit of measurement | the standard unit of force in the International System of Units (SI), equal to the force that produces an acceleration of one meter per second per second on a mass of one kilogram. |
| precision | mechanical or scientific exactness |
| triple beam balance | The Triple Beam Balance is a typical mechanical balance. It has a beam which is supported by a fulcrum. On one side is a pan on which the object is placed. On the other side, the beam is split into three parallel beams , each supporting one weight. |
| unit | any specified amount of a quantity, as of length, volume, force, momentum, or time, by comparison with which any other quantity of the same kind is measured or estimated. |
| volume | the amount of space, measured in cubic units, that an object or substance occupies. |
| weight | the force that gravitation exerts upon a body, equal to the mass of the body times the local acceleration of gravity: commonly taken, in a region of constant gravitational acceleration, as a measure of mass. |
| 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 |
| 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 combines |
| homogeneous mixture | two or more substances not chemically combines, but appearing to be evenly bleded |
| heterogeneous mixture | two or more substances not chemically combined, and appearing non-uniform with physically distinct substances included |
| balance | equipment used to measure mass |
| boiling point | temperature at which a liquid turns to gas |
| brittle | breaking into small pieces if bent or pressed |
| centimeter cubed | a unit of volume derived from length times width times height |
| compress | to squeeze or press together |
| dissolve | to break into pieces too small to be seen |
| gas | a state of matter having indefinite volume, indefinite shape, with particles bouncing around and not touching each other |
| gram | and SI unit to measure mass |
| gram per centimeter cubed | a derived unit to measure the density of a solid |
| gram per milliliter | a derived unit used to measure the density of a liquid |
| kilogram | the SI based unit used to measure mass |
| liter | the SI unit to measure volume of liquids |
| meniscus | the curve on the upper surface of a liquid in a container caused by surface tension |
| milliliter | an SI unit used to measure volume of liquids |
| phases of matter | solids, liquids, gases, and plasma |
| physical property | a characteristic of a pure substance that can be observed without changing it into another substance |
| solid | a state of matter having definite volume, definite shape, with particles vibrating, touching, and locked into space |
| soluble | able to dissolve |
| texture | how something feels, especially whether it's bumpy or smooth |
| condensation point | temperature at which a gas to turn liquid |
| conductor | a material that does not allow electricity or heat to pass through easily |
| density | an object's mass compared to it's volume |
| deposition | a gas changing into a solid without changing into a liquid |
| ductile | able to be pulled into long, thin wires |
| flexible | able to bend without breaking |
| freezing point | temperature at which a liquid turns to solid |
| insulator | a material that does not allow electricity or heat to pass through easily |
| kinetic theory | a physics theory that all matter is made of moving particles in random motion |
| luster | shininess |
| 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 |
| plasma | a state of matter consisting of ionized (electrically charged) particles |
| sublimation |
Created by:
marianahernandez
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