Constructing explanations and designing solutions in 3–5 builds on K–2 experiences and progresses to the use of evidence in constructing explanations that specify variables that describe and predict phenomena and in designing multiple solutions to design problems.

• Use evidence (e.g., observations, patterns) to support an explanation.
• Use evidence (e.g., observations, patterns) to construct an explanation.
• Use evidence (e.g., measurements, observations, patterns) to construct an explanation.
• Apply scientific ideas to solve design problems.
• Generate and compare multiple solutions to a problem based on how well they meet the criteria and constraints of the design solution.
• Identify the evidence that supports particular points in an explanation.
• Generate and compare multiple solutions to a problem based on how well they meet the criteria and constraints of the design problem.