The natural world and the world built by humans both provide examples of systems where interacting parts work together as a whole. Recognize that the behavior of a system may be different from the behavior of its components. Explain how feedback can be used to control the behavior of a system. Identify and diagram feedback loops that occur in biological or ecological systems. Identify and diagram feedback loops designed for common control systems, such as home light switches and thermostats.
Students best learn science by doing science.
Science is not merely a collection of facts and theories but a process, a way of thinking about and investigating the world in which we live. This standard addresses those skills that are used by scientists as they discover and explain the physical universe - skills that are an essential and ongoing part of learning science. Select and use appropriate instrumentation to design and conduct investigations. Use technology to present the design and results of investigation. Evaluate conclusions, weigh evidence, and recognize that arguments may not have equal merit.