Concept Kits

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

Scientific method & reasoning

1. Scientific Method grades 4-5 · 25 questions 9. Advanced Scientific Method grades · 25 questions 15. Misconceptions & Reasoning grades 6-7 · 25 questions

Earth & space

2. Earth & Space Basics grades 4-5 · 25 questions 5. Weather Systems grades 5-6 · 25 questions

Life science

3. Life Science grades 5-6 · 25 questions 4. Ecosystems & Food Webs grades 5-6 · 25 questions 6. Human Body Systems grades 6-7 · 25 questions

Matter & chemistry

7. Atoms & Molecules grades 6-7 · 25 questions

Engineering & design

8. Engineering Design Process grades 7-8 · 25 questions 10. Engineering Design Process grades · 25 questions

Connections & synthesis

11. Science & Society grades · 25 questions 12. Interdisciplinary Science grades · 25 questions 13. Cross-Topic Connections grades 5-6 · 25 questions 14. Real-World Applications grades 6-7 · 25 questions 16. Advanced Synthesis grades 7-8 · 25 questions