TOPS 38-Green Thumbs: Radishes DS09

TOPS 38-Green Thumbs: Radishes

20 structured activities using simple things

$19.95
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Description

Because radishes grow so fast, tropisms (natural predilections to grow in certain directions) are easy to observe.

See how roots grow toward water, leaves tilt toward light, stems bend against gravity. Graph growth rates on a sigma curve. A great hands-on introduction to plants and how they grow! 20 Lessons for late elementary and junior high students.
Oversize Pb, illus.

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