4-LS1-1 Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.
Clarification Statement: Examples of structures could include thorns, stems, roots, colored petals, heart, stomach, lung, brain, and skin.
Assessment Boundary: Assessment is limited to macroscopic structures within plant and animal systems.
This resource appears to be designed to build towards this performance expectation, though the resource developer has not explicitly stated so.
Comments about Including the Performance Expectation
Students explore the effectiveness of fat as an insulator in this activity, but do not collect data to support an argument. The activity could be extended to include temperature data collection and testing the insulating ability of other materials. This would provide opportunities to argue the effectiveness of one insulator versus another.