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science
Term | Definition |
---|---|
Matter | Anything that has mass and takes up space. |
Physical Change | Any change that alters form or appearance of matter but does not change the substance. |
Chemical Change | A change in matter that makes one or more new substances. |
Weight | The pull on an object. |
Mass | Matter in an object. |
Qualitative | Made by gathering information that can be recorded using description language. |
Quantitative | 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. |
Independent/Manipulated | 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. |
Dependent/Responding | 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. |
Mixture | Matter that consists of two or more substances not chemically combined. |
Compound | Two or more elements chemically combined. |
Pure substance | A substance made of only one kind of material having a definite proportional amounts and properties. |
Element | The simplest type of pure substance. |
Homogeneous mixture | Two or more substances not chemically combined, but appearing to be evenly blended. |
Heterogeneous mixture | Two or more substances not chemically combined, but appearing non-uniform with physically distinct substances included. |
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 to turn liquid |
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 |
flexible | able to bend without breaking |
gas | state of matter having indefinite volume, indefinite shape, with particles bouncing around |
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 |
kinetic theory | a physics theory that all matter is made of moving particles in random motion |
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 |
plasma | a state of matter consisting of ionized (electrically charged) particles |
precision | the amount of detail or refinement in measurement |
soluble | able to dissolve |
sublimation | turning from solid to gas without turning into a liquid |
texture | how something feels, especially whether it is bumpy or smooth |