Introduction to matter

A single kind of matter that always has a specific composition

• substance

• mixture

• combination

• association

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Characteristics of substances that can be observed without changing it into another substance.

• physical properties

• chemical properties

• molecular properties

• elemental properties

A group of two or more atoms held together by chemical bonds.

• molecule

• substance

• element

• nucleus

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A mixture in which you can usually see the different parts and they can easily be separated out.

• heterogenous

• homogenous

• hemigenous

• halogenous

Weight is the measure of the force of _______ on an object.

• gravity

• mass

• air

• molecules

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The basic SI unit for measuring the volume of a solid.

• cubic meter ( m³ )

• milliliter ( mL )

• cubic centimeter ( g/cm^{3 )}

• gram ( g )

Length x width x height =

• volume of a solid

• density of a solid

• volume of a liquid

• density of a solid

Baking a cake is an example of a

• chemical reaction

• physical reaction

• homogeneous reaction

• heterogeneous reaction

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The measure of how hot or cold an object is.

• temperature

• electrolysis

• tarnishment

• molecular density

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Which of these is an example of an exothermic reaction?

• lighting a candle

• ice melting

• photosynthesis

• baking bread

• water evaporating from a puddle

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