Discover that collections of pieces (e.g., powders, marbles, sugar cubes or wooden blocks) may have properties that the individual pieces do not.
Unifying Concepts of Science.
Systems and Energy (SAE)
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Observe that when parts are put together, they can do things that they couldn’t do by themselves.
Analyze how the output of one part of a system, which can include materials, energy or information, can become the input to other parts.
Show how most things are made of parts.
Explain that something may not work if some of its parts are missing.
Provide examples that demonstrate that something may not work well (or at all) if a part of it is missing, broken, worn out, mismatched, or misconnected.