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is the formation of a new substance that is only slightly soluble and settles as a solid (Taylor et al., 2016)

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the production of gas as a result of a chemical change is called effervescence (Taylor et al., 2016).

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do not produce new substances (Taylor et al., 2016) .

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the amount of  solute that is dissolved in a known volume of solvent (Taylor et al., 2016).

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a reaction in which one or more substances are transformed into one or more new substances (Taylor et al., 2016)

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a solution in which the maximum amount of solvent have been dissolved (Taylor et al., 2016).

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grams of a substance that will dissolve in 100g of solvent at a particular temperature (Taylor et al., 2016)

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the dissolved substance in a solution (Taylor et al., 2016)

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the liquid component of a solution (Taylor et al., 2016)

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Particles in a gas a widely separated and move in a random fashion (Taylor et al., 2016) .

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As a solid state particles are packed tightly together in a fixed three-dimensional lattice (Taylor et al., 2016) .

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Particles move from a fixed position, to moving in a random manner, colliding with each other and the walls of the containing vessel (Taylor et al., 2016)

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Substances can be in one of three forms depending on temperature and pressure (Taylor et al., 2016).

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Depending on the state of the particles depends on how the particles behave. Particles vibrate no matter what state they are in. As temperature increases, the size and speed of vibration increases  (Taylor et al., 2016),

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Matter can change in form and composition but the mass will remain the same (Skamp & Preston, 2015).

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such as strength or melting behaviour (Taylor et al., 2016).

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is an electrically neutral group of two or more atoms bonded covalently (Taylor et al., 2016).

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form when two or more elements chemically combine in fixed proportions  (Taylor et al., 2016)

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Is made up of only one type of atom. It is a pure substance  (Taylor et al., 2016).

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A substance with particular qualities or that is used for specific purposes (ACARA, 2019c).

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Chemical Science is concerned with understanding the composition and behaviour of substances (ACARA, 2019b). It is more of the four sub strands of the Australian Science Curriculum.

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A neutral particle with a nucleus. The smallest part of matter (Taylor et al., 2016).

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A physical substance; anything that has mass and occupies space (ACARA, 2019c). All things in the universe are comprised of matter (Harlen, 2015). Students may use the term "Stuff" in relation to matter (Skamp & Preston, 2015).

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contains one or more elements (Taylor et al., 2016)