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Science 8

Study!! 100 question test coming up!! Formative test(s)!!

TermDefinition
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 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 an experiment that changes.
Manipulated Variable 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.
Inquire 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.
Physical Change/Property any change that alters form or appearance of matter, but does make any substance in the matter into a different substance (changing the appearance but not what it is).
Chemical Change/Property a change in matter that produces one or more new substances.
Weight gravity's pull on an object.
Mass matter in an object (does not change).
Units of Mass grams.
Gravity the force of attraction by which terrestrial bodies tend to fall toward the center of the Earth.
Newton 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.
Mechanical Advantage the ratio of output force to the input force applied to a mechanism.
Newton's First Law of Motion an object at rest stays at rest and an object in motion stay in motion.
Newton's Second Law of Motion acceleration depends on the amount of force implied on an object.
Newton's Third Law of Motion after every action there is an equal and opposite reaction.
Accuracy how close a particular measurement is to the correct value.
Calibration the action or process of calibrating an instrument or experimental readings.
Graduated Cylinder a tool used to measure liquids by grams.
International System of Measurements an internationally accepted system of physical units, using the meter, kilogram, second, ampere, kelvin, mole, and candela as the basic units of length, mass, time, electric current, temperature, amount of substance, and luminous intensity.
Liquid one of the states of matter that is a slippery substance. Water is an example.
Meniscus the curved upper surface of a liquid in a tube.
Precision consistency of repeated measurement.
Triple Beam Balance a tool that is split into three separate beams to measure objects.
Unit a quantity chosen as a standard in terms of which other quantities may be expressed.
Volume the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.
Pure Substance a substance made of only one kind of material having definite proportional amount and properties.
Mixture a material system made up of two or more different substances which are mixed but are not combined chemically.
Element each of more than one hundred substances that cannot be chemically combined or broken down into simpler substances and are primary constituents of matter.
Compound a thing that is composed of two or more separate elements. A mixture.
Homogeneous of the same kind.
Heterogeneous diverse in character or content.
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 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 turns to a liquid.
Conductor a material that does allow electricity or heat to pass through easily.
Density an object's mass compared to it's 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 thin, long wires.
Flexible able to bend without breaking.
Freezing Point temperature at which a liquid turns into a 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 liquid.
Gram per Milli 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.
Kinetic Theory a physics theory that all matter is made of moving particles in random motion(s).
Liter the SI unit to measure volume of liquids.
Luster the property in which 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 in which a solid turns into a liquid.
Milli an SI unit used to measure volume of liquids.
Phases of Matter Solids, liquids, gases, and plasma.
Plasma a state of matter consisting of ionized (electrically charged) particles.
Soluble able to dissolve.
Sublimation turning from solid to gas without turning into a liquid.
Texture how something feels.
Unit a single, undivided whole.
Created by: erandolph
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