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Mrs. Thornburg’s Picture Vocabulary3rd Grade Soil Unit Mrs. Thornburg’s Picture Vocabulary
What do we call the loose material in which plants grow in the upper layer of the Earth?_____________________________
What do we call the part of the soil made up of the decayed parts of once-living things?______________________________________
What do we call a rich type of topsoil with lots of humus?_________________________________
What do we call a type of soil with very small grains that trap a lot of water?____________________________________
What do we call solid rock under soil?________________________
What do we call the layer under the topsoil?___________________________
What do we call the top layer of soilWhat do we call the top layer of soil? It is made up of the smallest grains, has the most humus and is the richest layer of soil (most nutrients). _____________________________
Label the layers of earth.___________________ 1. 2. 3. 4.
Label the layers of earth.Humus Topsoil Subsoil Bedrock 1. 2. 3. 4.
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SOIL. WHAT IS SOIL? SOIL IS A MATERIAL THAT FORMS THE CRUST OF THE EARTH. IT COMES FROM THE WEATHERING OF ROCKS AND DECOMPOSITION OF ORGANISMS. IT IS.
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Soil provides… nutrients for plant growth. Soil comes from: Rocks Minerals Decaying Organic Matter.
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