科一科二 · 科一
How a Seed Grows
A seed is a little plant. It is a plant that has notstarted to grow. Apple trees and daisies, carrots and corn, clover and wheat, all grow from seeds.
Here is a tree seed. Someday it will be a tree like this. Here is a flower seed. Someday it will be a flower like this.
Some seeds grow slowly. These are the seeds of an oak tree. An oak tree grows very, very slowly. Suppose you planted an oak tree seed. You would be a father or a mother, or even a grandfather or a grandmother, and the oak tree would still be growing.
Some seeds grow fast. This is abean seed. It grows very fast. It grows so fast that it becomes a bean plantin just a few weeks. You can plant bean seeds yourself. We used pole beans. You can use pole beans, bush beans, or lima beans. You can plant the seeds in eggshells or tin cansor old cups or little flowerpots. Be sure that your containers have holes in the bottom.
We used eggshells. We useda pencil to make holes in theeggshells. We filled twelve eggshells withsoil like this. We made a hole in the soil witha finger, like this. When you have made a hole inthe soil, plant a bean seed in it. Plant one seed in each hole. Cover the seed with soil.
