1. Science 8 th Grade Engineering Design How can you design a method for monitoring or minimizing global warming? How can you design a method that will reduce your carbon footprint? How can you design a method to ___________? (preapproved free choice activity)

2. Carbon Footprint A carbon footprint is defined as: The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).

3. Global Warming Global warming refers to the recent and ongoing rise in global average temperature near Earth's surface. It is caused mostly by increasing concentrations of greenhouse gases in the atmosphere. Global warming is causing climate patterns to change.

5. How can you design a method for monitoring and/or minimizing human impact on Earth and BEYOND!

6. Timeline April 28/29 Introduction to Engineering Design HW: Define two design problems. Due at the beginning of class May 3/4. May 3/4 Brainstorm solutions and develop a plan. Rough draft due at the end of class. May 5/6 Create the design. May 9/10 Test, redesign. Show design to Ms. Healy or Mr. Banino. May 11/22 Analyze the plan. May 13/16 Demonstrate your prototype. May 17/18 Summative presentation to Ms. Healy or Mr. Banino

7. MS-ETS1-1 Defining Problems Define a design problem that can be solvedthrough the development of an object, tool,process, or system and includes multiple criteriaand constraints, including scientific knowledgethat may limit possible solutions. HW: Define two design problems. Considersteps 1 – 4 listed on the next two slides. Due atthe beginning of class May 3/4.

8. I. Describe a problem that can be solved through the development of an object, tool, process or system. II. Identify the the system in which the problem is embedded. 1.Which individuals or groups need this problem solved? 2.What are the needs that must be met by solving this problem? 3.What scientific issues are relevant to the problem? 4.What are potential societal and environmental impacts of the solutions. 5.What is the relative importance of the various issues and and components of the system?

9. III. Define criteria that must be taken into account in the solution. How will you know you have solved the problem? What data will you collect? IV. Define the constraints that must be taken into account in the solution. 1. Time, materials and costs. 2. Scientific and other issues that are relevant to the problem. 3. Needs and desires of the group involved that may limit acceptable solutions. 4. Safety considerations. 5. Potential effect(s) on other individuals or groups. 6. Potential negative environment effects of possible solutions or failure to solve the problem.

10. MS-ETS1-2 Engaging in Argument from Evidence Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.

11. MS-ETS1-4 Developing and Using Models Develop a model to generate data for iterative testing and modifications of a proposed object, tool, or process such that an optimal design can be achieved.

12. MS-ETS1-3 Analyzing and Interpreting Data Analyze data from tests to determine similarities and differences among several design solutions to identify the best characteristics of each that can be combined into a new solution to better meet the criteria for success.