PA.SI. Science as Inquiry
SI.3. Design and conduct a scientific investigation and understand that current scientific knowledge guides scientific investigations.
SI.6. Develop descriptions, explanations, and models using evidence and understand that these emphasize evidence, have logically consistent arguments, and are based on scientific principles, models, and theories.
SI.9. Understand that scientific investigations may result in new ideas for study, new methods, or procedures for an investigation or new technologies to improve data collection.