The first slide contains a scenario looking at the fact that hydrangeas have different colored flowers depending on the pH of the soil they are grown in. It can be used as a starter and students give their responses. The students can then test soil from both gardens. See other resource 'soil testing' for a worksheet to accompany this proactical.

  • hydrangeas.ppt

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Created: Jun 1, 2010

Updated: Aug 19, 2015

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This resource is designed for US teachers. View UK version .

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