4th Grade: Human Impacts on Ecosystems

Fourth graders recently completed their science unit on ecosystems. To conclude their unit they designed ways to reduce human impacts on the world around us. Each group chose an ecosystem and a problem to solve. Throughout the entire grade level they came up with some really creative ideas. They prototyped Litter Disintegrators, Tree Copiers, Oil Sucking Submarines, systems to protect animals from poachers, a few robots, and many other unique ideas.