Asked by Michelle

1.Formulate a hypothesis for this investigation
2.State the aim of this investigation
3.
a)Independent variable
b)Dependent variable
c)Controlled variable
4.State methods and the control
Answered by Ms. Sue
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1.if the air contains carbon dioxide the lime water is going to turn milky
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Answered by prudence
1.if the air contains carbon dioxide the lime water is going to turn milky
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The dependent variable is the same amount of lime water, the independent variable is the colour changer of the lime water. The variable is the mouthpieces used
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