Big Ideas | Page 41

Key Concepts • Energy and fuels that humans use are derived from natural sources, and their use affects the environment in multiple ways. (From NGSS ESS3.A) • Some natural resources are renewable over time, and others are not. (From NGSS ESS3.A) • Renewable resources, such as sunlight, wind, and hydropower, are replenished through relatively rapid natural cycles. Nonrenewable resources, such as fossil fuels, are formed through extremely slow natural cycles. • The power sources we choose can impact the global climate. Standards Connections Next Generation Science Standards SCIENCE AND ENGINEERING PRACTICES SAMPLE STUDENT ENGAGEMENT, GRADES 3–5 Using Mathematics and Create timelines that depict how long it takes for various sources of energy to be replenished. Computational Thinking Debate the pros and cons of different sources of energy. Consider the financial costs, as well as the impacts of each source on the environment, including plants, humans and other animals, and climate. Engaging in Argument from Evidence BIG IDEAS | Grades 3–5 | SAN FRANCISCO PUBLIC UTILITIES COMMISSION 41