Soil bingo

Exercise and reference answers

Clues and terms

1. Clue

   Decayed organic matter.

   Item

   Humus

2. Clue

   Balanced soil mixture.

   Item

   Loam

3. Clue

   One layer of a profile.

   Item

   Horizon

4. Clue

   Where roots work hardest.

   Item

   Topsoil

5. Clue

   Needed in large amounts.

   Item

   Macro

6. Clue

   Needed only in traces.

   Item

   Micro

7. Clue

   Yellowing between veins.

   Item

   Chlorosis

8. Clue

   Turns nitrogen to ammonia.

   Item

   Nitrogenase

9. Clue

   Fungus helps the root.

   Item

   Mycorrhiza

Instructions

Read each clue and tap the term it describes.

Explanation