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Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

In this activity, multiple learners will use a game with ballloons to learn about coqui frog behavior.

This is a tape and glue activity in which learners make binoculars that they can decorate and then use to go bird watching.

In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.

In this activity, learners observe tide pool animals in a touch tank to consider how they survive.

Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.