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Worksheet StudioPractice pack · Ages 7-9
Renewable & non-renewable resources
Take your time. Show your thinking.
1. Is wind power captured by wind turbines a renewable or non-renewable energy resource?
Is wind power captured by … · Renewable & non-renewable …
2. Why does planting coastal mangroves and vegetation help protect islands: roots bind sand and buffer wave erosion, or they increase wave height?
Why does planting coastal … · Renewable & non-renewable …
3. What happens when too many fish are caught faster than the population can reproduce: overfishing (stock depletion) or eutrophication?
What happens when too many… · Renewable & non-renewable …
4. What mineral ore is smelted in a blast furnace to produce iron and steel: hematite (iron ore) or halite?
What mineral ore is smelte… · Renewable & non-renewable …
5. Does switching from incandescent bulbs to LED bulbs use less electrical energy for the same brightness (Yes / No)?
Does switching from incand… · Renewable & non-renewable …
6. Why is fresh groundwater on small coral islands a delicate resource that must not be over-pumped: saltwater intrusion can spoil the freshwater lens, or it turns into lava?
Why is fresh groundwater o… · Renewable & non-renewable …
7. Is coal formed from ancient buried plants over millions of years a renewable or non-renewable resource?
Is coal formed from ancien… · Renewable & non-renewable …
8. Is hydroelectric power generated by flowing river water a renewable or non-renewable energy resource?
Is hydroelectric power gen… · Renewable & non-renewable …
9. Why is pole-and-line tuna fishing (practised in the Maldives) considered more sustainable than large drift nets: it catches fish one by one with minimal bycatch, or it scrapes the seabed?
Why is pole-and-line tuna … · Renewable & non-renewable …
10. Which metal commonly used in drink cans can be melted down and recycled repeatedly with up to 95% less energy than making it from raw bauxite ore: aluminium or coal?
95% · Renewable & non-renewable …
11. Which greenhouse gas is released in large quantities when fossil fuels (coal, oil and gas) are burned: carbon dioxide or argon?
Which greenhouse gas is re… · Renewable & non-renewable …
12. When timber is harvested only at the rate that new trees are planted and grown to maturity, that forest management is called: sustainable or extractive?
When timber is harvested o… · Renewable & non-renewable …
12 questions · Seed 104730 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9
Renewable & non-renewable resources
Answers and reasoning. Review before teaching.
1. Is wind power captured by wind turbines a renewable or non-renewable energy resource?
Renewable
Wind is continuously generated by uneven solar heating of Earth’s atmosphere.
2. Why does planting coastal mangroves and vegetation help protect islands: roots bind sand and buffer wave erosion, or they increase wave height?
Roots bind sand and buffer wave erosion
Coastal vegetation stabilises shorelines and absorbs wave energy.
3. What happens when too many fish are caught faster than the population can reproduce: overfishing (stock depletion) or eutrophication?
Overfishing (stock depletion)
Harvesting beyond maximum sustainable yield depletes fish populations.
4. What mineral ore is smelted in a blast furnace to produce iron and steel: hematite (iron ore) or halite?
Hematite (iron ore)
Hematite (Fe₂O₃) is a major iron ore.
5. Does switching from incandescent bulbs to LED bulbs use less electrical energy for the same brightness (Yes / No)?
Yes
LEDs convert a much higher proportion of electrical energy into light rather than waste heat.
6. Why is fresh groundwater on small coral islands a delicate resource that must not be over-pumped: saltwater intrusion can spoil the freshwater lens, or it turns into lava?
Saltwater intrusion can spoil the freshwater lens
Freshwater floats as a thin lens above denser seawater; over-extraction draws salt water in.
7. Is coal formed from ancient buried plants over millions of years a renewable or non-renewable resource?
Non-renewable
Coal is a fossil fuel that takes millions of years to form and cannot be replaced quickly.
8. Is hydroelectric power generated by flowing river water a renewable or non-renewable energy resource?
Renewable
The water cycle continually replenishes river flow through rainfall.
9. Why is pole-and-line tuna fishing (practised in the Maldives) considered more sustainable than large drift nets: it catches fish one by one with minimal bycatch, or it scrapes the seabed?
It catches fish one by one with minimal bycatch
Pole-and-line fishing avoids accidental capture of turtles, sharks and dolphins.
10. Which metal commonly used in drink cans can be melted down and recycled repeatedly with up to 95% less energy than making it from raw bauxite ore: aluminium or coal?
Aluminium
Recycling aluminium saves roughly 95% of the energy required for primary smelting.
11. Which greenhouse gas is released in large quantities when fossil fuels (coal, oil and gas) are burned: carbon dioxide or argon?
Carbon dioxide
Combustion of carbon-based fuels oxidises carbon into carbon dioxide (CO₂).
12. When timber is harvested only at the rate that new trees are planted and grown to maturity, that forest management is called: sustainable or extractive?
Sustainable
Sustainable forestry maintains forest cover and biodiversity for future generations.
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Renewable & non-renewable resources
Take your time. Show your thinking.
1. Is wind power captured by wind turbines a renewable or non-renewable energy resource?
Is wind power captured by … · Renewable & non-renewable …
2. Why does planting coastal mangroves and vegetation help protect islands: roots bind sand and buffer wave erosion, or they increase wave height?
Why does planting coastal … · Renewable & non-renewable …
3. What happens when too many fish are caught faster than the population can reproduce: overfishing (stock depletion) or eutrophication?
What happens when too many… · Renewable & non-renewable …
4. What mineral ore is smelted in a blast furnace to produce iron and steel: hematite (iron ore) or halite?
What mineral ore is smelte… · Renewable & non-renewable …
5. Does switching from incandescent bulbs to LED bulbs use less electrical energy for the same brightness (Yes / No)?
Does switching from incand… · Renewable & non-renewable …
6. Why is fresh groundwater on small coral islands a delicate resource that must not be over-pumped: saltwater intrusion can spoil the freshwater lens, or it turns into lava?
Why is fresh groundwater o… · Renewable & non-renewable …
7. Is coal formed from ancient buried plants over millions of years a renewable or non-renewable resource?
Is coal formed from ancien… · Renewable & non-renewable …
8. Is hydroelectric power generated by flowing river water a renewable or non-renewable energy resource?
Is hydroelectric power gen… · Renewable & non-renewable …
9. Why is pole-and-line tuna fishing (practised in the Maldives) considered more sustainable than large drift nets: it catches fish one by one with minimal bycatch, or it scrapes the seabed?
Why is pole-and-line tuna … · Renewable & non-renewable …
10. Which metal commonly used in drink cans can be melted down and recycled repeatedly with up to 95% less energy than making it from raw bauxite ore: aluminium or coal?
95% · Renewable & non-renewable …
11. Which greenhouse gas is released in large quantities when fossil fuels (coal, oil and gas) are burned: carbon dioxide or argon?
Which greenhouse gas is re… · Renewable & non-renewable …
12. When timber is harvested only at the rate that new trees are planted and grown to maturity, that forest management is called: sustainable or extractive?
When timber is harvested o… · Renewable & non-renewable …
12 questions · Seed 104730 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Renewable & non-renewable resources
Answers and reasoning. Review before teaching.
1. Is wind power captured by wind turbines a renewable or non-renewable energy resource?
Renewable
Wind is continuously generated by uneven solar heating of Earth’s atmosphere.
2. Why does planting coastal mangroves and vegetation help protect islands: roots bind sand and buffer wave erosion, or they increase wave height?
Roots bind sand and buffer wave erosion
Coastal vegetation stabilises shorelines and absorbs wave energy.
3. What happens when too many fish are caught faster than the population can reproduce: overfishing (stock depletion) or eutrophication?
Overfishing (stock depletion)
Harvesting beyond maximum sustainable yield depletes fish populations.
4. What mineral ore is smelted in a blast furnace to produce iron and steel: hematite (iron ore) or halite?
Hematite (iron ore)
Hematite (Fe₂O₃) is a major iron ore.
5. Does switching from incandescent bulbs to LED bulbs use less electrical energy for the same brightness (Yes / No)?
Yes
LEDs convert a much higher proportion of electrical energy into light rather than waste heat.
6. Why is fresh groundwater on small coral islands a delicate resource that must not be over-pumped: saltwater intrusion can spoil the freshwater lens, or it turns into lava?
Saltwater intrusion can spoil the freshwater lens
Freshwater floats as a thin lens above denser seawater; over-extraction draws salt water in.
7. Is coal formed from ancient buried plants over millions of years a renewable or non-renewable resource?
Non-renewable
Coal is a fossil fuel that takes millions of years to form and cannot be replaced quickly.
8. Is hydroelectric power generated by flowing river water a renewable or non-renewable energy resource?
Renewable
The water cycle continually replenishes river flow through rainfall.
9. Why is pole-and-line tuna fishing (practised in the Maldives) considered more sustainable than large drift nets: it catches fish one by one with minimal bycatch, or it scrapes the seabed?
It catches fish one by one with minimal bycatch
Pole-and-line fishing avoids accidental capture of turtles, sharks and dolphins.
10. Which metal commonly used in drink cans can be melted down and recycled repeatedly with up to 95% less energy than making it from raw bauxite ore: aluminium or coal?
Aluminium
Recycling aluminium saves roughly 95% of the energy required for primary smelting.
11. Which greenhouse gas is released in large quantities when fossil fuels (coal, oil and gas) are burned: carbon dioxide or argon?
Carbon dioxide
Combustion of carbon-based fuels oxidises carbon into carbon dioxide (CO₂).
12. When timber is harvested only at the rate that new trees are planted and grown to maturity, that forest management is called: sustainable or extractive?
Sustainable
Sustainable forestry maintains forest cover and biodiversity for future generations.
12 questions · Seed 104730 · Age guidance, not curriculum certification