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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

In this activity about vision and optical illusions, learners conduct a simple test to demonstrate how our eyes create "afterimages." Learners stare at a black cardboard bat for at least 30 seconds an

In this activity, learners will explore vegetative propagation while preparing food scraps to grow into plants.

This activity (on page 2 of the PDF under SciGirls Activity: Forensics) is a full inquiry investigation into how hairs from a crime scene are matched to suspects.