Design Success Criteria Practice Test

Read about the rain collector design. Yuki’s group checks if it works after a storm. Success means it collects at least 1 gallon, keeps out dirt and leaves, and does not overflow or spill. How can students tell if their rain collector works well?

Look at the lunch tray carrier design. Keisha made a carrier that must hold a tray, a milk carton, and utensils at once. Items should not slide off while walking, and the carrier must fit through the cafeteria doorway. What must the solution be able to do to meet the success criteria?