Materials Required:
l 4-inch-high flowerpot
l Soil
l 10 corn seeds
l Water
l Glass plate
Procedure:
- Fill the flowerpot with soil almost to the top. Poke 10 corn seeds into the soil, then sprinkle more soil on top.
- Water the seeds thoroughly and place the pot in a warm place. As the soil dries out, give it water.
- After the seeds have sprouted in a few days, cover the pot with a piece of glass slightly larger than the top. Allow the corn to continue growing with the glass in place. Soon you will see the glass plate lifted from the rim of the pot.
This Is What Happens:
We usually don’t think of plants as having muscles as humans do, because plants remain still, while we are very active. But over a period of time, a growing plant can exert a tremendous force—have you ever seen a cement sidewalk pushed up by the growing roots of a big tree!
