Lesson 10 – How Nature Recycles

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Read About How Nature Recycles


Read the vocabulary terms to understand the reading better.

Bacteria are microscopic creatures that live in all natural environments.

Nutrients are things that plants or animals need to grow and to stay healthy.

Recycling is the process of taking materials and reusing them.

Castings are a natural manure produced by worms.

How Nature Recycles

People recycle garbage. Did you know that nature recycles, too?

Step 1

Dead leaves, twigs, and pine needles fall to the ground. Bacteria in the soil eat them. The bacteria free nutrients in the dead plant material. These nutrients go back into the soil.

Worms carry small pieces of dead plant material underground to eat. Worm castings have nutrients from the digested dead plant material. The nutrients in worm castings mix into the soil.

Step 2

Nutrients in the soil mix with water. Plant roots take in nutrients when they take in water

Step 3

Plants grow larger when they get water, air, and nutrients from the soil. Some parts of the plants die. Leaves, twigs, and pine needles die and fall to the ground. Then the cycle starts over again.

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