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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

In this activity, learners compare and contrast different forms of luminescence by observing how chemiluminescence, phosphorescence, and fluorescence produce or emit light.

In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.

In this activity, learners investigate how some butterfly wings get their color.

Use this hands-on activity to demonstrate infrared and thermal radiation.