30 October 2009

How are plants the same?

We have been out and about in the school grounds again, this time with a handful of labels and the task of finding some different kinds of plants on which to use them.

Take the cosmos plant.

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Literally.  Pull it out of the soil (you see, the flowers are just about finished and we want to collect the seeds for next year) and lay it on the ground.  What parts can you label?  See the leaves?  The stem?

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The roots?

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Are there any flowers left?  What about seeds?

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Look for flowers that have died; petals that have fallen off.

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Now let’s move somewhere else.  What types of plants are we labelling here?

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How are these two types of plants the same?  How are they different?  What other plants can you label?

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