| A | B |
|---|
| soil | a mixture of weathered rock, organic matter, water and air that supports the growth of plant life |
| humus | made of decayed plant or animal matter |
| gravel | mixture of rock fragments or pebbles. |
| composition | what different soil types are mad of |
| horizon | a specific layer of soil |
| sand | Small loose grains of worn or disintegrated rock |
| pemeable | able to be passed through by liquid or gasses |
| pores | a space in a rock or soil |
| texture | physical appearance of a rock |
| particle size | the size of pieces of soil |
