Kidney Filtering

Type of Resource



From TeachEngineering - Students filter different substances through a plastic window screen, different sized hardware cloth and poultry netting. Their models show how the thickness of a filter in the kidney is imperative in determining what is filtered out and what stays in the blood stream.

Performance Expectations

3-5-ETS1-1   Define a simple design problem reflecting a need or a want that includes specified criteria for success and constraints on materials, time, or cost.

3-5-ETS1-2   Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem.

3-5-ETS1-3   Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.