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In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity.

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 activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.