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In this activity, learners explore why the sky is blue. Learners model the scattering of light by the atmosphere, which creates the blue sky and red sunset, using a flashlight and clear glue sticks.

In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.

In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

This activity generates learner excitement about light through the creation of a room-sized rainbow.

In this activity, learners create a "mini sky" in a glass of water in a dark room.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this "Sid the Science Kid" activity, learners set up a simple experiment to find out how sunscreen counteracts the effects of the sun.

This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.