Based on the analysis of each energy source shown in the image, here is the solution to both questions.
Solution for Question 2: Labeling Energy Sources
Here is the classification for each of the nine energy sources:
*
Coal: NonRenewable
* *Reason:* A fossil fuel formed over millions of years from ancient plant matter. It is consumed much faster than it can be naturally replenished.
*
Biomass: Renewable
* *Reason:* Derived from organic materials like plants and animal waste, which can be regrown or replenished on a human timescale.
*
Hydropower: Renewable
* *Reason:* Generated using the kinetic energy of flowing or falling water, which is continuously replenished through the Earth's natural water cycle (evaporation and precipitation).
*
Natural gas: NonRenewable
* *Reason:* A fossil fuel formed from ancient marine organisms over millions of years. It is a finite resource that cannot be replaced quickly.
*
Geothermal: Renewable
* *Reason:* Harnesses heat from the Earth's core, which is continuously produced by the decay of radioactive elements and is essentially inexhaustible on human timescales.
*
Oil: NonRenewable
* *Reason:* A fossil fuel formed from ancient marine organisms. It is a finite resource that takes millions of years to form and is consumed far faster than it can be replenished.
*
Solar: Renewable
* *Reason:* Derived from the sun's radiation, which is naturally replenished daily and will be available for billions of years.
*
Nuclear: NonRenewable
* *Reason:* Uses uranium as fuel, which is a finite mineral resource that must be mined from the Earth and cannot be replenished on a human timescale.
*
Wind: Renewable
* *Reason:* Generated from the wind, which is created by the uneven heating of the Earth's surface by the sun. As long as the sun shines, wind will be available.
Solution for Question 3: Energy Source from Moving Water
The question asks: "Which of the following energy sources is produced from moving water?"
The correct answer is:
b) Hydropower
* *Explanation:* Hydropower, also known as hydroelectric power, is generated by capturing the energy of moving water, typically by building a dam to create a reservoir and then releasing the water through turbines to generate electricity. The other options are incorrect:
*
a) Geothermal uses heat from the Earth's interior.
*
c) Biomass uses organic materials.
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d) Natural gas is a fossil fuel burned for energy.
Parent Tip: Review the logic above to help your child master the concept of energy worksheet for 3rd grade.
