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Solid - Has a definite shape and a definite volume, Liquid - Has a definite volume but no definite shape., Gas - Has no definite shape or volume., Density - The amount of mass per unit of volume., Solubility - The ability of one substance to be dissolved into another substance.,

Matter Week 2

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排行榜

匹配遊戲是一個開放式範本。它不會為排行榜生成分數。

視覺風格

選項

切換範本

恢復自動保存: ?