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In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla

In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.

In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.

This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.