Using these assessment items gives the teacher an observable indication of the student s understanding of scientific concepts. 3.ENV.01 Propose and justify conservation techniques related to various environmental problems. Discuss the impact of pollution on selected environments. 3.ENV.03 Compare and contrast polluted and non-polluted environments. 3.ENV.04 Assess how organisms react to changing environments.
Simple machines change the effect of the applied force, often reducing work.
Simple machines are used in everyday objects. 3.MCH.1 Identify the six basic simple machines. Recognize the uses of simple machines in real world objects. 3.MCH.5 Observe simple machines found in the home, school, and community. Analyze simple machines and predict how they can be used.