00170

9
Weatherin g on Rocks

Transcript of 00170

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Weathering on Rocks

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Today you will be carrying out an

investigation on how acid creates a chemical

reaction on rocks.

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First you need to write a prediction…

I predict that the ____________will be the most reactant rock and that __________________will be the least reactant rock because __________________

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Then put on your safety glasses!

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After that you take 4 watch glasses, lay them out and put 1 of the following on

each glass:

GraniteBasalt

Sand StoneLimestone

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Then add ½ a test tube of acid

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Record your observations

Did it fizz?Did it change colour?

Did any parts crumble?etc.

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After ten minutes your investigation is over

was your prediction correct?

Now write an evaluation and conclusion

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Don’t forget to wash up!