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13 October, 13:47

Conclusion: How did your observations support or contradict your predictions? Describe an

experiment that could further explore physical or chemical change.

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  1. 13 October, 15:43
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    Answer:The Law of Conservation of Mass states that mass is conserved in physical and chemical changes. Students explore this concept by taking initial masses, making predictions, and finding final masses of physical and chemical changes. Students observe water changing from ice to a liquid, a piece of cardboard being cut up, salt dissolving in water, Alka-Seltzer reacting in water, and water's physical property of cohesiveness being disrupted by soap.
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