Here are 10 important keywords related to soil that children should know to understand the importance of soil:
Soil: The upper layer of the earth's crust, composed of organic and inorganic materials, where plants grow. Soil is one of the most important things on Earth, just like air and water. It's hidden under our feet and buildings, so we don't often think about it. Soil is where we find the plants and animals that make up our food, and it's home for billions of living things. Soil also supports many of our buildings and structures.
Soil forms very slowly, so we can't just replace it in our lifetime. Many soils are becoming damaged and are at risk. That's why it's important to understand soil and make sure it's there for future generations. Soil-Net is a website that can help you learn more about soil.
We need healthy soil to grow the crops that we eat and feed to livestock. Soil is also important to plants that grow in forests and other natural areas. Soil is a biological structure, built by living creatures to secure their survival. Microbes make cements out of carbon, with which they stick mineral particles together, creating pores and passages through which water, oxygen and nutrients pass.
To take care of soil, we need to make sure it has the right mixture of water, air, minerals, and organic matter. Soil organic matter is made up of decomposing plant and animal material, and it helps bind soil together and keeps it anchored in place. We can also reduce soil erosion by increasing organic matter.
Texture: The relative portion of sand, silt, and clay in a given amount of soil. Texture is important to evaluate soil quality associated with.
Erosion: The wearing away of land or soil through one or more processes, such as the actions of water.
Nutrients: Substances that plants need to grow, such as nitrogen, phosphorus, and potassium, which are found in soil.
Organic matter: Decaying plant and animal material that is found in soil and helps to improve soil quality.
pH: A measure of how acidic or alkaline a substance is, which can affect the growth of plants in soil.
Soil structure: The way that soil particles are arranged, which can affect the ability of water and air to move through soil.
Soil health: An assessment of the ability of soil to meet its range of ecosystem functions as appropriate to its environment.
Conservation tillage: A farming practice that involves leaving crop residues on the soil surface to reduce erosion and improve soil health.
Cover crops: Plants that are grown to protect and improve soil between periods of regular crop production.
Understanding these keywords can help children appreciate the importance of soil for plant growth, ecosystem health, and sustainable agriculture.