Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

• With guidance, plan and conduct an investigation in collaboration with peers.
• Make observations (firsthand or from media) to collect data that can be used to make comparisons.
• Plan and conduct investigations collaboratively to produce data to serve as the basis for evidence to answer a question.
• Plan and conduct an investigation collaboratively to produce data to serve as the basis for evidence to answer a question.
• Make observations (firsthand or from media) to collect data which can be used to make comparisons.