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Compost - K |
| Today, students learned that
one man’s dirt is a gardener’s soil. Soil starts as rock. Over
long periods of time, rock is broken down by rain, ice, and wind.
Soil gives roots support and provides minerals
to plants.
Soil also has organic matter. Organic matter comes from living things -- plants and animals. In gardens, people often mix in organic matter called compost. Compost is organic matter that comes from brown stuff, like leaves, and green stuff, like grass clippings, kitchen scraps, and animal manure. Insects, earthworms, and tiny organisms from soil munch on the brown stuff and green stuff to break it down. Air and water are needed to keep the organisms alive. Compost adds nutrients to the soil. The minerals from the soil
and the nutrients from the compost help plants to grow like our foods and
vitamins help us to grow.
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