Matter vocabulary Review

Non-metals

• Elements that are usually good conductors of heat and electricity and are malleable or ductile.

• Elements that are usually poor conductors of heat and electricity and are not malleable or ductile.

• Elements that are typically shiny and solid at room temperature.

• Elements that can easily lose electrons and form positive ions.

Element

• A pure substance consisting of only one type of atom.

• A mixture of different types of atoms.

• A compound made of two or more elements.

• A solution that contains dissolved substances.

Physical Change

• A change that results in the formation of new substances.

• A change in which no new substances are formed and that may involve a change in physical properties.

• A change that only occurs at high temperatures.

• A change that affects the chemical composition of a substance.

Products

• Substances that are produced in a chemical reaction.

• Elements that are combined to form a compound.

• Reagents that are consumed during a reaction.

• Catalysts that speed up the reaction process.

Insulator

• A material that allows the flow of electric charge or heat.

• A material that resists the flow of electric charge or heat.

• A material that conducts electricity efficiently.

• A material that is used to store electric charge.

Malleable

• A property of materials that can be hammered or rolled into thin sheets without breaking.

• A characteristic of materials that can easily break under pressure.

• A term used to describe materials that are rigid and inflexible.

• A property of materials that can conduct electricity easily.

Chemical Change

• A process where one or more substances are altered into one or more new and different substances.

• A physical change that does not alter the chemical composition of a substance.

• A reaction that occurs only in the presence of heat or light.

• A process that involves the mixing of two or more substances without any change in their properties.

Mixture

• A combination of two or more substances where each retains its own properties and can be separated physically.

• A uniform composition of two or more substances that cannot be separated by physical means.

• A chemical reaction between two or more substances resulting in a new substance.

• A solution where one substance is dissolved in another, creating a homogeneous mixture.

Reactants

• Substances that start a chemical reaction.

• Products formed after a chemical reaction.

• Catalysts that speed up a chemical reaction.

• Inert substances that do not participate in a reaction.

Conductor

• A material that allows the flow of electric charge or heat.

• A substance that prevents the flow of electricity.

• A type of insulator used in electrical circuits.

• A device that stores electrical energy.