1. Bell Work: 9/16/14 About every other rainfall, what happens to the sewers in New York City? How does this affect the people of New York City? How do green roofs affect the surface temperature of a building? How do green roofs cool the surface of the building? Describe a cost-effective way to reduce storm water runoff. What are some other advantages of green roofs?

2. Can we analyze and evaluate the impact of man’s use of earth’s land, water, and atmospheric resources?

3. SPI 0707.7.7 Analyze and evaluate the impact of man’s use of earth’s land, water, and atmospheric resources.

4. Engineering Green Roofs Part I: Engineer a model building at least 23 centimeters (9 inches) high Materials for building structure: 40 index cards, 30 cm (1 ft.) of foil, and a roll of tape 1 cup of water will be added to your rooftop (none may run off); your building must support the weight of the saturated green roof. Part II: Engineer a roof for the building that reduces runoff by absorbing water Materials for roof: soil, gravel, moss, and sand

5. Imagine: Research Green Roofs by Experimenting Make a plan with your team to test the different types of green roofs. What will be your control factors and variables (independent and dependent)? How will your control group be different from your experimental groups? Record these in your STEM notebook You can earn up to $500 for detailed and accurate data.

6. Which natural material do you think works best to reduce runoff? Why do you think so?

7. Use a Post-It Note to “tweet” about the following question: Use a Post-It Note to “tweet” about the following question: What do you think the impact would be of adding green roofs to all buildings in your model city? Tweet a response…