Question

prepare a model on soil profile​

Answer 1

You need :

1. large and small plastic bottles
2. scissors
3. funnel
4. gloves
5. damp soil
6. sand
7. six worms
8. rotating leaves
9. black paper
10. sticky tape

STEP -1

cut the top of the large, clear plastic bottles as shown. place the smaller bottle inside the large one. Make sure the gap is evenly spaced all the way around the smaller bottles.

STEP -2

Fill the gap with layers of soil and sand to the top. Press the soil down lighty. gently place the worms on the top of soils, and cover them with rotating leaves.

STEP -3

Cover the sides with black paper. keep the soil moost. After a few days remove the paper to see how the worms have tunneled away and dragged leaves onto their burrow's.