Big+Idea+3-4+Competency

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 * Design and conduct an investigation to answer a question about an object, organism or an event making recording observations using appropriate tools and instruments.
 * Measure, describe, and classify objects and materials by basic characteristics and their uses.
 * Identify how technology is used to meet human needs, and describe its positive and negative impacts.
 * Construct and use models to explain natural phenomena and make predictions and conduct investigations.
 * Trace the flow of energy through a various living and nonliving systems.