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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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In this fun, hands-on autumn activity, learners experiment to discover whether the colored substances in leaves can be separated from the leaves.

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners plant seeds and watch them sprout and grow inside a CD case.

1 cent - $1 per student Ages 4 - 11 1 to 7 days
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In this activity, learners model estuaries, artificially enriching both fresh and salt water samples with different amounts of nutrients and observing the growth of algae over several weeks.

$5 - $10 per group Ages 14 - 18 1 to 4 weeks
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This activity provides an opportunity for learners to observe and examine how carbon dioxide, water, and light produce glucose/starch through a process called photosynthesis.

$5 - $10 per group Ages 14 - 18 1 to 7 days
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Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners find out what happens when they cover leaves with pieces of black construction paper. This activity shows learners that plants need sunlight to survive.

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