Analyze the dynamic nature of science models, laws, mechanisms, and theories that explain natural phenomena (e.g., durability, tentativeness, replication, reliance on evidence). 


. Identify and apply science and engineering practices through integrated process skills (e.g., observing, classifying,

 predicting, hypothesizing, designing and carrying out investigations, developing and using models, constructing and communicating explanations).

Characteristics of experiments (e.g., multiple trials, control groups, variables) and other types of scientific investigations (e.g., observations, surveys).