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In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.

$10 - $20 per group Ages 6 - 14 1 to 4 weeks
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As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.

$10 - $20 per group Ages 8 - 14 1 to 4 weeks
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In this hands-on botany activity, learners sprout vegetables in film canisters.

1 cent - $1 per student Ages 4 - 11 1 to 4 weeks
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In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

$1 - $5 per group Ages 4 - 14 1 to 4 weeks
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In this activity, learners use food scraps from the kitchen to grow new vegetables.

$1 - $5 per group Ages 6 - adult 1 to 4 weeks
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Learners use a transparent plastic glove as a container to grow seeds. A different kind of seed can be planted in each finger.

$1 - $5 per student Ages 6 - 14 1 to 4 weeks
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In this indepth hands-on activity, learners build a structure that allows them to observe the growth of roots and the correlation between root growth and stem extension.

$10 - $20 per group Ages 8 - 14 1 to 4 weeks