Ecosystems

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What is an abiotic factor in an ecosystem?

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An abiotic factor is a non-living component of an ecosystem, such as sunlight, soil, water, and air.

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NGSS.MS-LS2-3

NGSS.MS-LS2-4

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What role does sunlight play in an ecosystem?

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Sunlight is an abiotic factor required by plants to perform photosynthesis, which is essential for producing energy in the ecosystem.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What is the geosphere?

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The geosphere refers to the solid parts of the Earth, including rocks, soil, and minerals.

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NGSS.MS-ESS2-1

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What are primary consumers?

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Primary consumers are organisms that eat plants; they are the second trophic level in an ecosystem.

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NGSS.MS-LS2-2

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Define ecosystem.

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An ecosystem is a system made up of organisms interacting with one another and their physical environment.

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What is soil composed of?

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Soil is made of small pieces of rock, water, air, and decaying organic matter.

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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 and supporting plant growth.

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NGSS.MS-LS2-3

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What is the difference between biotic and abiotic factors?

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Biotic factors are living components of an ecosystem (like plants and animals), while abiotic factors are non-living components (like sunlight and water).

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What is photosynthesis?

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Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What are trophic levels?

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Trophic levels are the hierarchical levels in an ecosystem, defined by how organisms obtain energy, including producers, primary consumers, secondary consumers, and so on.

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NGSS.MS-LS2-3