doc, 36.5 KB
doc, 36.5 KB
pptx, 417.34 KB
pptx, 417.34 KB
The odd one out starter (the slate is not made from calcium carbonate) and the true/false plenary are very effective. The experiment could be done as a demonstration only as it can take a long time to heat the stone sufficiently.
Tes classic free licence

Review

5

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sirkus

12 years ago
5

sweet and simple

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