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Discover how the salt in soil affects plant growth with a few seeds, some cotton, and salt. In this hands-on activity, you will plant seeds in 2 different kinds of soil, containing more or less salt.

1 cent - $1 per student Ages 6 - 11 1 to 7 days
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In this activity, learners create a biosphere in a baggie.

$1 - $5 per student Ages 4 - 11 1 to 7 days