Concept Kits

Pick a kit. Each round is 10 questions — you get a hint after a first miss, and an explanation every time.

1. Simple Machines Basics Simple machines · grades 4-5 · 25 questions 2. Forces and Motion Fundamentals Forces & energy · grades 4-5 · 25 questions 3. Gears, Pulleys, and Mechanical Advantage Gears & mechanisms · grades 5-6 · 25 questions 4. Levers, Inclined Planes, and Wedges Simple machines · grades 5-6 · 25 questions 5. Energy Transfer and Conversion Forces & energy · grades 6-7 · 25 questions 6. Structural Engineering and Materials Design & engineering · grades 6-7 · 25 questions 7. Vehicle Design and Propulsion Systems Design & engineering · grades 7-8 · 25 questions 8. Master Engineer — Capstone Design & engineering · grades 7-8 · 25 questions 9. Compound Machines & Mechanical Systems Gears & mechanisms · grades 6-8 · 25 questions 10. Hydraulics & Pneumatics Gears & mechanisms · grades 6-8 · 25 questions 11. Gears, Cams & Linkages Gears & mechanisms · grades 6-8 · 25 questions 12. Robotics & Automation Mechanisms Gears & mechanisms · grades 6-8 · 25 questions 13. Cross-Topic Connections Systems & synthesis · grades 5-6 · 25 questions 14. Real-World Applications Systems & synthesis · grades 6-7 · 25 questions 15. Misconceptions & Reasoning Systems & synthesis · grades 6-7 · 25 questions 16. Advanced Synthesis Systems & synthesis · grades 7-8 · 25 questions