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STAAR Vocab
5th Grade STAAR review - Physical Science
| Term | Definition |
|---|---|
| boiling point | temperature at which a liquid changes to a gas, 100 degrees Celsius for water |
| conductor | material that allows energy to flow easily |
| dissolve | to form a solution with another substance |
| freezing point | temperature at which a liquid changes to a solid, 0 degrees Celsius for water |
| gas | state of matter in which the substance takes both the shape and the volume of its container |
| insulator | material that does not allow energy to flow easily |
| liquid | state of matter that has a definite volume, but takes the shape of the container |
| magnetism | a force that pulls materials containing iron across a distance |
| mass | amount of matter in an object or substance, measured in grams |
| matter | anything that has mass and takes up space |
| melting point | temperature at which a solid changes to a liquid, 0 degrees Celsius for water |
| physical properties | characteristic that can be measured, observed, or changed without turning into a new substance |
| physical state | the form that matter can take, such as solid, liquid or gas |
| relative density | whether an object sinks or floats when compared to another object |
| solid | state of matter with a definite volume and shape |
| solubility | ability of one substance to dissolve in another |
| weight | the measure of the pull of gravity on matter |
| dissolve | the process of evenly mixing a solute (substance) in a solvent to form a solution |
| mixture | a combination of two or more substances |
| solution | a type of mixture where one substance dissolves in another and appears as a single substance |
| solvent | a substance that dissolves another to form a solution (ex. water) |
| solute | a substance that is dissolved in another to form a solution (ex. salt) |
| solubility | the ability of a substance to dissolve in another substance |
| electricity | the flow of electrical power or charge |
| circuit | a path through which electricity can flow |
| current | the flow of electric charge |
| open circuit | is a circuit where the path has been interrupted as some point so that the current will not flow; also called an incomplete circuit |
| closed circuit | is a circuit where the path is complete so that the current will flow; also called a complete circuit |
| conductor | a material that allows energy to flow well |
| insulator | a material that does not allow energy to flow well |
| light energy | a form of energy that travels in waves and is visible to the human eye |
| reflect | the bouncing back of light when it strikes a surface |
| refract | bending the light when it changes speed as it passes through different mediums (substances) |
| transparent | allows light to pass through easily |
| translucent | allows some light to pass through |
| opaque | does not allow light to pass through |
| light ray | beam of light that is moving in a straight line from a source |
| magnify | to make something appear larger |
| medium | a solid, liquid or gas that can transmit energy |
| transmit light | when light rays pass through matter |
| lens | curved, transparent material that refracts light |
| concave lens | curved inward, spreads light |
| convex lens | curved outward, focuses light |
| energy | the ability to do work |
| energy transformation | the process of changing energy from one form to another |
| mechanical energy | energy of motion or the potential for motion |
| sound energy | energy produced by vibrations as they travel through a specific medium |
| thermal energy | heat energy |
| force | a push or pull on an object |
| friction | force caused by objects rubbing together that makes them slow down or stop |
| evaporation | liquid water changes to water vapor |
| condensation | water vapor cools and changes to liquid water |
Created by:
1017sandy
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