Combine sensing, control, and water delivery to build a closed-loop automatic plant-watering demonstrator.

Design the body, lighting, circuit, and enclosure of a night light with clock or automatic sensing functions.

Plan sensor openings, mounting, light diffusion, and ventilation to create a safe, easy-to-assemble enclosure.

Study a ship's main structures and motion, then create a coherent watercraft model.

Study a submarine's main structures and motion, then create a coherent underwater vehicle model.

Compare survival needs on the Moon and Mars, then plan habitation, research, energy, and transport modules for a complete base.

Study astronaut tasks and space conditions, then design the key structures and functions of astronaut equipment.

Explore links, joints, and motion paths, then design, assemble, and test a working linkage.

Explore track, wheel, and drive relationships, then design, assemble, and test a tracked vehicle.

Design chassis, wheels, drivetrain, and power system for a stable car that can be optimized for speed or load.

Explore solar-energy capture and conversion, then design light collection, power transfer, and a working application.

Explore rainwater use and sustainability, then design a collection system that clearly demonstrates its function.