Germination of seeds
1 Minute
Parts of a seed and seed growth for kids: learn about cotyledons, embryos, and what seeds need to grow into plants. A science lesson in English.
- Seed parts: the cotyledon, the embryo, and the protective seed coat
- How the embryo uses food stored inside the cotyledon to grow
- The three things a seed needs to grow: soil, sunlight, and water
What this lesson teaches
A seed is the starting stage of every plant, creeper, and tree in nature. It contains the living parts and stored food necessary to begin growing into a full-sized plant.
The main parts of a seed
- The seed coat is the protective outer layer that keeps both the cotyledon and the embryo safe.
- The cotyledon is the internal food store that acts like a packed lunchbox for the seed.
- The embryo is the young plant part that feeds on the food inside the cotyledon to grow.
Things needed for growth
- Soil provides the ground where the seed stands and helps it prepare food.
- Sunlight is an essential element that helps the seed grow into a plant.
- Water provides the moisture the seed needs alongside soil and light to develop.
How a seed grows into a tree
Every large tree begins life as a tiny seed. Inside the protective coat, the embryo depends on the food materials stored within the cotyledon to start growing. In addition to its own stored food, the seed prepares food from the soil while using water and sunlight. By using these resources, it grows little by little until it becomes a complete plant or a huge tree.