Explain Decomposers Recycle Matter - 5th Grade Science
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Find the missing step in this model: plant dies → ______ → nutrients in soil → new plant grows.
Find the missing step in this model: plant dies → ______ → nutrients in soil → new plant grows.
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Decomposers break down the dead plant. Decomposition is the crucial recycling step.
Decomposers break down the dead plant. Decomposition is the crucial recycling step.
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Which model statement shows recycling of matter: “matter disappears” or “matter changes form”?
Which model statement shows recycling of matter: “matter disappears” or “matter changes form”?
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Matter changes form. Conservation of matter: it transforms but never vanishes.
Matter changes form. Conservation of matter: it transforms but never vanishes.
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What is compost, and which organisms make it by decomposition?
What is compost, and which organisms make it by decomposition?
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Decomposed organic matter made mainly by bacteria and fungi. Compost is nutrient-rich material created through decomposition.
Decomposed organic matter made mainly by bacteria and fungi. Compost is nutrient-rich material created through decomposition.
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Which model arrow is correct: decomposers → nutrients or nutrients → decomposers?
Which model arrow is correct: decomposers → nutrients or nutrients → decomposers?
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Decomposers → nutrients. Decomposers release nutrients, not the other way around.
Decomposers → nutrients. Decomposers release nutrients, not the other way around.
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Identify the missing step in this model: dead leaves → decomposers → ________ → plant growth.
Identify the missing step in this model: dead leaves → decomposers → ________ → plant growth.
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Nutrients returned to the soil. Decomposition releases nutrients that plants can absorb.
Nutrients returned to the soil. Decomposition releases nutrients that plants can absorb.
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Which option best describes matter in ecosystems: it is recycled or it disappears?
Which option best describes matter in ecosystems: it is recycled or it disappears?
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Matter is recycled. Unlike energy, matter cycles continuously through ecosystems.
Matter is recycled. Unlike energy, matter cycles continuously through ecosystems.
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What are nutrients in soil that decomposers help release back into the ecosystem?
What are nutrients in soil that decomposers help release back into the ecosystem?
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Minerals and other usable substances needed for growth. These essential elements are recycled through decomposition.
Minerals and other usable substances needed for growth. These essential elements are recycled through decomposition.
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What is the correct term for the dead plant and animal material that decomposers break down?
What is the correct term for the dead plant and animal material that decomposers break down?
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Detritus. This term refers to all dead organic matter in an ecosystem.
Detritus. This term refers to all dead organic matter in an ecosystem.
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What type of matter do decomposers break down: living tissue or dead organisms and waste?
What type of matter do decomposers break down: living tissue or dead organisms and waste?
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Dead organisms and waste. Decomposers only process non-living organic material.
Dead organisms and waste. Decomposers only process non-living organic material.
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Which two major groups of organisms are the most common decomposers?
Which two major groups of organisms are the most common decomposers?
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Bacteria and fungi. These microorganisms are the primary decomposers in most ecosystems.
Bacteria and fungi. These microorganisms are the primary decomposers in most ecosystems.
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Which statement matches a correct model: decomposers recycle matter or decomposers create new matter?
Which statement matches a correct model: decomposers recycle matter or decomposers create new matter?
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Decomposers recycle matter. Matter cannot be created or destroyed, only recycled.
Decomposers recycle matter. Matter cannot be created or destroyed, only recycled.
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Identify the correct label for decomposers in a model: producers, consumers, or recyclers of matter.
Identify the correct label for decomposers in a model: producers, consumers, or recyclers of matter.
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Recyclers of matter. This label emphasizes their role in nutrient cycling.
Recyclers of matter. This label emphasizes their role in nutrient cycling.
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Which option best completes this model: animal dies → decomposers → nutrients → ________?
Which option best completes this model: animal dies → decomposers → nutrients → ________?
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Producers absorb nutrients and grow. Plants use the recycled nutrients to build new tissues.
Producers absorb nutrients and grow. Plants use the recycled nutrients to build new tissues.
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What is the immediate product of decomposition that helps plants grow again?
What is the immediate product of decomposition that helps plants grow again?
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Simple nutrients released into soil or water. These dissolved nutrients can be absorbed by plant roots.
Simple nutrients released into soil or water. These dissolved nutrients can be absorbed by plant roots.
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Identify the correct sequence in a simple matter cycle model using these terms: producer, consumer, decomposer, nutrients.
Identify the correct sequence in a simple matter cycle model using these terms: producer, consumer, decomposer, nutrients.
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Nutrients → producer → consumer → decomposer → nutrients. This shows the complete cycle of matter through an ecosystem.
Nutrients → producer → consumer → decomposer → nutrients. This shows the complete cycle of matter through an ecosystem.
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In a food web model, what is the main source of energy for decomposers?
In a food web model, what is the main source of energy for decomposers?
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Chemical energy stored in dead organisms and wastes. Decomposers obtain energy by breaking down organic matter.
Chemical energy stored in dead organisms and wastes. Decomposers obtain energy by breaking down organic matter.
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What happens to nutrients in a forest if decomposers are removed from the model?
What happens to nutrients in a forest if decomposers are removed from the model?
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Nutrients stay locked in dead matter and become less available to plants. Without decomposition, nutrients remain unavailable.
Nutrients stay locked in dead matter and become less available to plants. Without decomposition, nutrients remain unavailable.
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Which option is an example of a decomposer: mushroom, hawk, or grass?
Which option is an example of a decomposer: mushroom, hawk, or grass?
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Mushroom. Fungi like mushrooms are classic decomposers.
Mushroom. Fungi like mushrooms are classic decomposers.
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In a soil model, what change would you predict if decomposition increases?
In a soil model, what change would you predict if decomposition increases?
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More nutrients become available in the soil for plant uptake. Faster decomposition releases nutrients more quickly.
More nutrients become available in the soil for plant uptake. Faster decomposition releases nutrients more quickly.
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Which option is a decomposer: mushroom, hawk, or grass?
Which option is a decomposer: mushroom, hawk, or grass?
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Mushroom. Fungi like mushrooms break down dead organic matter.
Mushroom. Fungi like mushrooms break down dead organic matter.
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