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  DeltaPotassium727

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  Secondary I • 4yr.

  Hello! I was wondering if all gases were invisible? Thanks!

  Science

  1

  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  Hi! How do we do the litmus paper test? Thanks a lot!

  Science

  0

  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  Hi,

  My teacher is asking me to measure the volume of a rock. How do I do that? The sides are not straight ... I cannot measure them!

  Science

  0

  1 answer
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  KindTyrannosaurus332

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  Secondary II • 4yr.

  Hello again! :)

  Why is water not an element but a compound? In fact, I don't quite understand the difference. Do you have a tip?

  Science

  0

  1 answer
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  AdorableMoose4991

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  Secondary I • 4yr.

  How do you calibrate a flail scale? Anyway, I don't understand why this is important.

  Science

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  1 answer