[{"id": 1, "type": "multiple_choice", "options": ["O₂", "CO₂", "H₂O", "NaCl"], "question": "What is the chemical symbol for water?", "correct_answer": "H₂O"}, {"id": 2, "type": "multiple_choice", "options": ["Igneous, sedimentary, metamorphic", "Red, gray, black", "Large, small, tiny", "Hard, soft, medium"], "question": "What are the three types of rocks?", "correct_answer": "Igneous, sedimentary, metamorphic"}, {"id": 3, "type": "multiple_choice", "options": ["Eventually start moving on its own", "Change direction randomly", "Always accelerate", "Stay at rest unless acted upon by an external force"], "question": "According to Newton's First Law, an object at rest will:", "correct_answer": "Stay at rest unless acted upon by an external force"}, {"id": 4, "type": "written_response", "question": "Explain the scientific concept covered in \"Biomes Practice\" and provide a real-world example.", "correct_answer": null}, {"id": 5, "type": "multiple_choice", "options": ["Large, small, tiny", "Hard, soft, medium", "Igneous, sedimentary, metamorphic", "Red, gray, black"], "question": "What are the three types of rocks?", "correct_answer": "Igneous, sedimentary, metamorphic"}]