MCA Grade 8 Science Practice Questions - Minnesota Comprehensive Assessment (MCA-IV) Science - Grade 8 Exam

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An engineering team builds a prototype solar-powered water heater for winter camping in northern Minnesota. During testing, the water temperature only reaches 15°C (59°F). What is the next logical step in the engineering design process?

Analyze test data to identify heat loss areas and redesign the insulation around the tank Immediately sell the current prototype to consumers without further changes Abandon the project completely because solar energy cannot work in cold climates Change the test goals so that 15°C is declared the optimal final temperature

Correct Answer:

Analyze test data to identify heat loss areas and redesign the insulation around the tank

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