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5th- Physical Sci.
Physical Science Vocabulary
| Question | Answer |
|---|---|
| to set or keep apart | seperate |
| the bouncing back of light rays from a surface | reflected |
| the movement of energy through space as waves | radiation |
| the force that pulls objects toward each other | gravity |
| the force between two surfaces rubbing against each other | friction |
| energy that is stored in an object | potential energy |
| how high or low a sound is | pitch |
| energy sources which are not based on burning of fossil fuels or the splitting of atoms | alternative energy |
| to pass or cause to pass through space or through a material | transmitted |
| a change from one form to another without turning into a new substance | physical change |
| enery in form of heat from melted rock deep below Earth's surface | geothermal energy |
| a material that does not let heat, electricity, or sound energy pass through it easily | insulator |
| a complete circuit, allowing the flow of electricity to flow through. (the device starts working) | closed circuit |
| to become absorbed in liquid: to make a solution with another substance | dissolved |
| a change in the position of an object | motion |
| a force that pulls magnetic materials across a distance | magnetism |
| to take something up or in: to soak up a liquid or take in nutrients or chemicals gradually | absorb |
| a push or pull | force |
| the ability of an object or substance to allow heat, electricity, or sound pass through it | conductivity |
| forms that matter can take- solid, liquid, or gas | states of matter |
| the structure, feel and appearance of something | texture |
| a force that causes floating. It is the ability of a liquid or gas to cause less dense objects to float or rise to the surface | buoyancy |
| a particle of matter made of two or more atoms joined tightly together | molecule |
| the point(temperature) at which a solid changes to a liquid | melting point |
| the rapid back and forth movement that produces sound | vibrate |
| the bending of light rays as they move from one material into another material | refracted |
| the enery of moving particles in a substance (also called heat energy) | thermal energy |
| the material, or stuff, that everything is made of | matter |
| a form of energy produced by vibrating objects | sound |
| when one or more substances change into one or more new substances with different properties than the original substances. Baking soda and vinegar make a chemical change. | chemical change |
| any material that allows an electric current to pass through it easily | conductor of electricity |
| the temperature at which a substance changes from a liquid to a gas | boiling point |
| to change from a liquid to a solid when temperature drops | freeze |
| a measure of the pull of gravity on an object | weight |
| the amount of space that an object or substance takes up | volume |
| the amount of matter in an object or substance | mass |
| to draw objects nearer (the pull of a magnet) | attracted |
| the ability of a mineral to resist being scratched | hardness |
| a quality or attribute, especially one that serves to define or describe something | physical properties |
| not changing; stable; not moving | stationary |
| the temperature at which a substance changes from a liquid to a solid | freezing point |
| to allow substances to pass through (like water going through a sponge) | permeable |
| the process by which moisture in the air changes to liquid or solid form (rain, clouds, or snowflakes) | condensation |
| when a substance changes from a solid to a liquid | melting |
| energy of motion | kinetic energy |
| the ability to do work | energy |
| a form of energy that travels in waves and can move through empty space where there is no air | light energy |
| to prevent or reduce the passage of heat, electricity, or sound into, from, or through something | insulate |
| energy from the sun | solar energy |
| a combination of two or more substances that do not form a new substance | mixture |
| when a liquid is so hot that it changes to a gas | boiling |
| a mixture with one substance spread out so evenly in another substance that you cannot tell the two substances apart | solution |
| a curved piece of clear glass, or plastic that bends light rays | lens |
| a form or energy that is felt as temperature | heat energy |
Created by:
Mr.Rod
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