How do humans impact the environments they live in? How can we raise public awareness of invasive species? Objective Students will know the name and impact of at least one invasive species in Michigan. Students will be able to explain one-way humans can impact a natural ecosystem. Students will be introduced to the way NPS releases information to the public. Students will develop a sense of stewardship and wilderness ethics that connect them to Pictured Rocks Preparation Materials Ecosystem Threats: White board/dry erase markers (either bring or ask teachers to use classrooms) Press Release: P Duration: 60 Minutes.