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In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.

Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results.

In this activity, learners set up a night time insect observation station with a light and sheet.

In this activity, learners explore how nanosized structures can create brilliant color.

In this hands-on botany activity, learners sprout vegetables in film canisters.

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

In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.

In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.

In this activity about bones (page 12 of PDF), learners investigate and compare the weight-bearing capacity of solid and hollow cylinders.

In this activity, learners turn empty 2-liter bottles into a see-through compost container.

In this outdoor activity, learners discover how the environment around a building affects the growth of plants.

This is an activity about turbidity, or the amount of sediment suspended in water.