wunder beta♻️ Renewable and Non-Renewable Energy
Sort out the world's energy sources: which ones nature keeps refilling (solar, wind, hydro) and which limited fossil fuels we're burning — and why the difference matters.
What you’ll learn
- Two Kinds of Energy SourceDefine renewable and non-renewable energy and give examples of each.Renewable sources like sunlight, wind and water are replaced by nature and will not run out. Non-renewable sources — the fossil fuels coal, oil and gas — exist in fixed amounts and are used up far faster than they form.
- Renewables Up CloseDescribe how solar, wind, hydro, geothermal and tidal energy capture natural flows of energy.Renewable technologies each capture a natural flow of energy: solar panels use sunlight, wind turbines use moving air, hydro uses flowing water, geothermal uses Earth's heat, and tidal uses the sea. All are refilled by nature.
- Weighing the ChoiceCompare the benefits and drawbacks of renewable and non-renewable energy and explain the shift to renewables.Fossil fuels are reliable and energy-dense but limited and release carbon dioxide that warms the climate. Renewables are clean and endless but often depend on the weather. The world is shifting towards renewables to cut emissions and avoid running out.
Questions this course answers
What makes an energy source renewable?
Renewable sources are naturally replaced faster than we use them, so they will not run out.
Which of these is a non-renewable energy source?
Coal is a fossil fuel — a limited supply that took millions of years to form and cannot be replaced quickly.
How does a wind turbine generate electricity?
Wind turbines use moving air to spin their blades, which turn a generator to produce electricity.
What gas is released when fossil fuels are burned, warming the climate?
Burning fossil fuels releases carbon dioxide, which traps heat and warms the planet.
What is one drawback of many renewable sources like wind and solar?
Many renewables depend on the weather — solar needs sunshine and wind needs moving air.
Which list contains only renewable energy sources?
Solar, wind and hydro are all naturally replaced, so they are renewable. Coal, oil and gas are fossil fuels.
Grounded in trusted sources
- BBC Bitesize — Energy resources
- NASA Climate Kids
- Britannica
Every Wunder lesson is built from real, reputable sources — never invented.
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