[{"id": 1, "type": "multiple_choice", "skill": "photosynthesis", "options": ["Soil, darkness, and oxygen", "Wind, rocks, and heat", "Sand and ice", "Sunlight, water, and carbon dioxide"], "question": "What do plants need for photosynthesis?", "difficulty": "medium", "explanation": "Photosynthesis requires light energy, water from roots, and CO₂ from air.", "needs_review": false, "correct_answer": "Sunlight, water, and carbon dioxide"}, {"id": 2, "type": "short_answer", "skill": "photosynthesis", "question": "What gas do plants release during photosynthesis?", "difficulty": "easy", "explanation": "The products of photosynthesis are glucose and oxygen (O₂).", "needs_review": false, "correct_answer": "Oxygen"}, {"id": 3, "type": "written_response", "skill": "application", "question": "Based on what you learned about Plant Life Cycles, describe one real-world application. Explain the science behind it in at least 3-4 sentences.", "difficulty": "medium", "explanation": "", "needs_review": true, "correct_answer": null}, {"id": 4, "type": "true_false", "skill": "scientific method", "question": "A hypothesis must be testable and falsifiable.", "difficulty": "easy", "explanation": "Scientific hypotheses must be testable through experiments or observations.", "needs_review": false, "correct_answer": "True"}, {"id": 5, "type": "true_false", "skill": "scientific method", "question": "A hypothesis must be testable and falsifiable.", "difficulty": "easy", "explanation": "Scientific hypotheses must be testable through experiments or observations.", "needs_review": false, "correct_answer": "True"}]