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Science 8
Term | Definition |
---|---|
Matter | Anything that has mass and takes up space |
Weight | Pull of gravity on an object (can change!) |
Mass | Amount of matter inside an object (cannot change) |
Physical Change | Any change that alters form or appearance of matter but does not make and substance in the matter into a different substance. |
Chemical Change | A change in matter that produces one or more new substances. |
Qualitative observations | Observations using the five senses |
Quantitative observations | Observations recorded as a number |
Inference | Interpretation of what the direct observations mean |
Scientific Law | Describes what scientist 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 |
Varible | Part of the 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 varible | 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 an a scientific experiment |
Newton's First Law | A object at rest stays at rest and an object in motion stays in motion unless altered by an external force |
Newton's Second Law | Amount of force needed to change an objects speed depend on the mass of the object and the acceleration required |
Newton's Third Law | Every action has an equal and opposite reaction |
Accuracy | Being correct and precise. |
Calibration | Each set of graduation on an interment. |
Graduated Cylinder | Used for measuring amount of water |
International System of Mesurement | The system of measure of movement used all over the world |
Liquid | Flowing substance that takes form of it's container |
Mass | The amount of matter in an object |
Matter | Anything that has mass and takes up space |
Meniscus | A slope in the surface of a liquid |
Newton | A measurement for the amount of it takes one kilogram across one kilometer |
Precision | Hitting the same spot everytime |
Triple beam balance | An instrument that measures mass |
Unit | Quantity chosen as a standard item |
Volume | Amount of spaces an object takes up |
Weight | Amount of gravity that pushes on an object |
Matter | Anything that has mass and volume |
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 combinded |
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 no uniform with physically distinct substances included |
Condensation point | Temperature a liquid turns into a gas |
Conductor | A material that allows electricity to flow |
Density | Objects mass compared to it's volume |
Deposition | A gas changing into a solid with changing into a liquid |
Ductile | Ability to be pulled into long thin wires |
Flexible | Ability to bend without breaking |
Freezing point | Temperature that a liquid turns into a gas |
Insulator | Material that does not allow electricity to run threw it |
Kinetic Theory | That all of matter is made up of particles that move in a random motion |
Luster | Shininess |
Magnectic | Something that sticks to a magnet |
Malleable | Ability to be hammered into a flat sheet of material |
Melting point | The temperature a solid melts |
Plasma | Matter that has electrically charged particles |
Sublimation | A solid changing into a gas with it changing into a liquid |
Accuracy | An area that is on track |
Balance | The tool we use to measure mass |
Boiling point | The temperature a liquid boils |
Brittle | Material that is breakable when it is under pressure |
Calibrate | To mark off lines on a measuring equipment |
Centimeter cubed | A measurement for volume |
Chemical Property | Characteristic of a substance changing into something else |
Compress | To press togather |
Dissolve | To break into tiny pieces |
Gas | Matter that has infinite number of shapes and volumes |
Graduated cylinder | A tool used for measuring |
Gram | A unit of measurement for measuring mass |
Kilogram | A unit of measurement measuring mass |
Liquid | Matter that has definite volume |
Litter | A unit of measurement that measures amount of liquid |
Mass | The amount of matter in an object |
Matter | Anything that has mass and volume |
Meniscus | Curve of the surface of the water |
Milliliter | Unit of measurement for liquid |
Phases of Matter | Solid, liquid, gas, and plasma |
Physical Property | Characteristics of a substance without changing it into another substance |
Precision | amount of detail or refinement in measuring |
Solid | State of matter having definite matter and definite shape |
Soluble | able to dissolve |
States of Matter | Solid, liquid, gas, and plasma |
Texture | How something feels |
Unit | A single, undivided whole |
Volume | Amount of space that an object takes up |
Weight | The amount of gravity that pushes on an object |