Understanding Soil and Its Layers

Questions

1. MultiChoice

   What is soil mainly made of?

2. MultiChoice

   Which top layer of soil contains the most nutrients for growing plants?

3. MultiChoice

   Which layer lies directly beneath the topsoil?

4. MultiChoice

   What is the solid, unbroken rock layer located deep underneath all soil layers?

5. MultiChoice

   What dark, rich material in soil comes from decayed leaves and plants?

6. MultiChoice

   Why is soil necessary for plant growth?

7. MultiChoice

   What component in soil allows plant roots to absorb oxygen?

8. MultiChoice

   Which garden tool helps loosen tightly packed soil?

9. MultiChoice

   What happens when heavy rain hits loose soil that has no plant roots holding it?

10. MultiChoice

    How long does nature take to create a thin layer of rich topsoil?

11. WordsBox

    Topsoil is ____ in nutrients that help plants ____ well.

12. WordsBox

    Bedrock is the ____ rock that lies under soil ____