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Category 1 Review
physical properties of matter, mixtures, solutions, and changes to matter
| Term | Definition |
|---|---|
| classify | to sort objects into groups that are alike in some way |
| conductor | a material that easily transfers heat or electricity |
| density | the amount of matter compacted into a given volume of a substance |
| dissolve | to mix completely with another substance to form a solution |
| electrical energy | the form of energy that consists of a flow of electric charges through a conductor |
| float | to stay on top on a liquid or a gas |
| gas | a state of matter that does not have definite shape or volume |
| insoluble | a substance that will not dissolve in a liquid |
| insulator | a material that stops or slows the flow of heat, electricity or sound |
| liquid | matter that flows and takes the shape of its container |
| magnetism | the pulling force of a magnet |
| mass | the amount of matter in an object |
| matter | anything that takes up space and has mass |
| measurable | capable of being measured |
| observable | capable of being observed |
| physical property | a characteristic of a substance that can be observed or measured without changing the substance |
| physical state | a form of matter |
| record | to write or draw what has been observed |
| sink | to drop to the bottom of a liquid or gas |
| solid | matter that has a definite shape and volume |
| solubility | a property of material that enables it to be dissolved in or by a liquid |
| soluble | able to be dissolved in or by a liquid |
| testable | a question or hypothesis which can be investigated through experimentation |
| thermal energy | the energy of moving particles that produce heat |
| water | a clear liquid that falls from the sky and fills oceans, rivers, and lakes |
| combine | to join |
| filter | a tool used to separate smaller particles from larger particles |
| ingredient | a component of a mixture |
| iron filings | small pieces of iron |
| magnet | a object that attracts iron or steel |
| maintain | to continue or keep going |
| mixture | a combination of two or more substances that keep their own properties |
| separate | to take apart |
| beaker | a container with a pouring spout and measurement marks |
| change | to make or become different |
| dissolve | to mix completely with another substance to form a solution |
| evaporation | the process by which a liquid changes to a gas |
| homogeneous | the same in composition, as in a mixture in which the solute is evenly distributed throughout the solvent |
| hot plate | a burner used for heating materials |
| identify | to indicate the characteristics of an object |
| ingredient | a component of a mixture |
| solute | the substance which is dissolved in the solvent |
| solution | a mixture of two or more substances that are evenly distributed throughout |
| solvent | in a solution, the part of the mixture in which other substances are dissolved |
| substance | the material something is made of |
| collect | to gather or assemble |
| condensation | the change from a gas to a liquid as a result of cooling |
| cooling | to make or become colder |
| freeze | to change a liquid to a solid |
| heat | transfer of energy between two objects when the objects are different temperatures |
| heating | to make or become warmer |
| melt | to change from a solid to a liquid |
| observe | to gather information using your senses |
| particle | a small piece or part of a substance |
| predict | to tell what you think will happen |
| record | to write or draw what has been observed |
| state of matter | one of the forms of matter ( solid, liquid, gas) |
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