Energy Flow through Ecosystems

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What are fossil fuels?

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Fossil fuels are natural substances formed from the remains of ancient organisms, buried and subjected to heat and pressure over millions of years, including coal, oil, and natural gas.

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NGSS.MS-PS1-3

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What are the products of cell respiration?

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The products of cell respiration are carbon dioxide and water.

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How does the burning of fossil fuels contribute to global warming?

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The burning of fossil fuels releases carbon dioxide into the atmosphere, which contributes to the greenhouse effect, trapping heat and leading to global warming.

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NGSS.MS-ESS3-5

Front

What are the reactants in photosynthesis?

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The reactants in photosynthesis are sunlight, carbon dioxide, and water.

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What is the equation for photosynthesis?

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The equation for photosynthesis is: carbon dioxide + water → oxygen + glucose.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What is the greenhouse effect?

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The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, preventing it from escaping into space, thus warming the planet.

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Front

What role do producers play in an ecosystem?

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Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

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NGSS.MS-LS1-6

Front

What is cellular respiration?

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Cellular respiration is the process by which cells convert glucose and oxygen into energy, producing carbon dioxide and water as byproducts.

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NGSS.HS-LS1-7

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What is the significance of decomposers in an ecosystem?

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Decomposers break down dead organic matter, recycling nutrients back into the soil, which supports plant growth.

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NGSS.MS-LS2-3

Front

What is the difference between autotrophs and heterotrophs?

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Autotrophs are organisms that produce their own food (e.g., plants), while heterotrophs are organisms that consume other organisms for energy (e.g., animals).

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NGSS.MS-LS2-3