1. Origin of Seeds

2. Objective: After hands on exploration and analysis, students will classify, and document the characteristics of various seeds using scientific notation by the end of the lesson.

3. Origin of Seeds Essential Question: What do you know about seeds?

4. Seeds Seeds come in many different sizes. Some are tiny and some are large and heavy. Whatever the size or shape, all seeds can become new plants. A seed grows into the type of plant it comes from. It starts inside a flower. A fruit often grows around it to protect it.

5. Germination When a seed starts to grow, it is called germination. First, a tiny root breaks out of the seed. The root grows down into the soil. It takes in the water and nutrients that the new plant needs to grow. Next, a shoot or stem grows out of the seed. It grows up, towards the light. Soon, leaves will grow on the stem. The seed is now a plant.

6. Parts of a Seed A seed has 3 main parts. They are the embryo, seed coat, and the cotyledon.

7. The Seed Embryo The embryo is the part of the seed that grows into a plant. It includes the root, stem, and leaves.

8. The Seed Coat The seed coat is the though outer shell of the seed. It protects the seed from injury and keeps it from drying out. The seed coat comes off as the seed begins to germinate. Seed coat

9. Cotyledon The cotyledon (cot·y·le·don) is where the food is stored inside the seed. Seeds can have one or two cotyledons. A seed with one cotyledon is called a monocot and a seed with two cotyledons is called a dicot.

10. Seed Disbursement Plants rely on a variety of natures distribution systems to scatter their seeds. Gravity is one way seeds begin the germination process. They fall to the ground near the plant. Seeds are also carried by wind, water, insects and animals to their new growing place.

11. References Structure of Life, Delta Education http://www.bing.com/images/search