Soil

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

1. is generally soft and can retain more water in it.

2. is made up of small lumps of rocks with cracks and crevices.

3. is generally harder and more compact.

4. is hard and usually difficult to dig with a spade.

5. The mixture of rock particles and humus is called the .

6. The best top soil for growing plants is

7. occurs as a deposit in riverbeds.

8. provides shelter for many living organisms such as worms, rodents, moles and beetles.

9. is the amount of water percolated through the soil in unit time.

10. Soil holding water in it is called .