The NGSS is not a set of daily standards, but a set of expectations for what students should be able to do by the end of instruction (years or grade-bands). The performance expectations set the learning goals for students, but do not describe how students get there.
Performance Expectation (PE)
Make a claim about the merit of a solution to a problem caused when the environment changes and the types of plants and animals that live there may change.*
Performance Expectation
Grade: 3-5, 3
Construct an argument with evidence that in a particular habitat some organisms can survive well, some survive less well, and some cannot survive at all.
Performance Expectation
Grade: 3-5, 3