SOIL

123456
Across
  1. 3. the material on the surface of the ground in which plants grow
  2. 4. the planet third in order of distance from the sun, between Venus and Mars; the world on which we live
  3. 5. the place something comes from or starts at, or the cause of something
  4. 6. a valuable or useful chemical substance that is formed naturally in the ground
Down
  1. 1. not using artificial chemicals in the growing of plants and animals for food and other products
  2. 2. protection from bad weather, danger, or attack
  3. 3. material with particular physical characteristics