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This activity encourages learners to focus on the natural environment of the Eastern Woodlands before the arrival of European settlers.

In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

Have you noticed the plastic rings that are used to hold six-packs of soda? Those rings are great for carrying cans, but they're real trouble when they become trash that animals can get tangled in.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

In this activity, learners build one or more edible coral polyps and place them together to form a colony.

In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.