Topic: Invasive Species
Fish Farm
Related PLT Activities
- PreK-8 Guide
- Exploring Environmental Issues: Focus on Risk (9-12)
- Exploring Environmental Issues: Places We Live (9-12)
You might think of a catfish as sedentary and a bit of a homebody. But when it’s introduced into waters outside its range, it gets around — and it’s a voracious eater. Discover a homegrown “alien” species — n today’s Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- The Changing Forest: Forest Ecology (9-12)
Island ecosystems are fragile — and especially vulnerable to non-native species. A biologist talks about the foxes, pigs and eagles of California’s Channel Islands — on today’s Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- The Changing Forest: Forest Ecology (9-12)
- Exploring Environmental Issues: Focus on Risk (9-12)
Over thousands of years, a tree’s pests and that pest’s natural enemies can reach a balance — so all these creatures can thrive. But when you take any one of them out of its ecosystem, you’ve got trouble. More — on today’s Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- The Changing Forest: Forest Ecology (9-12)
Scientists think that dinosaurs became extinct relatively rapidly — after an asteroid collided with Earth. But, for modern species, the reasons for extinctions aren’t always as clear. More — after this on Earth and Sky.
Related PLT Activities
- PreK-8 Guide
- The Changing Forest: Forest Ecology (9-12)
- Exploring Environmental Issues: Biodiversity (9-12)
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PROJECT LEARNING TREE® is an award winning Environmental Education program of the American Forest Foundation.
Enhance learning in your classroom with correlated PLT lessons. Hundreds of correlations have been developed combining PLT's award winning PreK-12 Environmental Education curriculum and Earth & Sky's radio series.
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