Give examples that show how individual parts of organisms, ecosystems, or man-made structures can influence one another.
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Explain that most man-made and natural objects are made of parts.
Explain that when put together, parts can do things they could not do separately.
Ask questions and make observations about objects, organisms, and events in the environment.
Describe a design problem in their own words.
Describe how scientific investigations involve asking and answering a question.