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Science

Energy flow in Earth systems

As part of Class 9 Science, this topic explores how energy enters Earth’s system mainly as sunlight and moves through the atmosphere, land, oceans, and living organisms. Students connect the absorption and reflection of radiation with heating, temperature differences, convection, winds, and the water cycle. They also examine how energy passes through food chains and ecosystems while matter cycles through Earth’s spheres, building a systems view of how energy flow links climate, weather, and life.

Easy · Level 1 · 2 questions

Practice questions

01Why are energy-efficient devices useful?

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02Why is using natural light during the day good for saving energy?

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