Parts of the Egg interactive worksheet - Free Printable

The task is to label the parts of an egg in the provided diagram using the terms given in the table. Below is the solution with explanations:

Diagram Labels and Explanations:

1. Outermost Layer (Top Right):
- Label: Eggshell
- Explanation: The outermost layer of the egg is the eggshell, which provides structural support and protects the contents inside.

2. Layer Just Inside the Eggshell (Second from Top):
- Label: Outer membrane
- Explanation: The outer membrane is a thin, transparent layer just inside the eggshell. It helps prevent bacteria from entering the egg.

3. Next Layer (Third from Top):
- Label: Inner membrane
- Explanation: The inner membrane is another thin, transparent layer that lies just inside the outer membrane. Together with the outer membrane, it forms the protective barrier around the egg contents.

4. Clear Liquid Around the Yolk (Fourth from Top):
- Label: Albumen
- Explanation: The albumen (also known as the egg white) is the clear, watery substance surrounding the yolk. It provides nutrients and moisture for the developing embryo.

5. Yellowish Sphere in the Center (Fifth from Top):
- Label: Yolk
- Explanation: The yolk is the yellowish sphere in the center of the egg. It contains nutrients essential for the development of the embryo.

6. Small White Spot on the Yolk (Sixth from Top):
- Label: Blastoderm
- Explanation: The blastoderm is a small white spot on the surface of the yolk. It is the site where the embryo begins to develop if the egg is fertilized.

7. Curved Structure Connecting the Yolk to the Albumen (Seventh from Top):
- Label: Chalaza
- Explanation: The chalaza (plural: chalazae) are the spiral bands that anchor the yolk to the albumen. They help keep the yolk centered within the egg.

8. Air Pocket at the Bottom (Bottom Label):
- Label: Air cell
- Explanation: The air cell is a small pocket of air located at the blunt end of the egg. It forms as the egg cools after being laid and helps the chick breathe during hatching.

Final Labeled Diagram:

- Outermost Layer: Eggshell
- Second Layer: Outer membrane
- Third Layer: Inner membrane
- Clear Liquid: Albumen
- Yellowish Sphere: Yolk
- Small White Spot: Blastoderm
- Curved Structure: Chalaza
- Air Pocket: Air cell

Completed Table:

| Vitelline membrane | Outer membrane | Inner membrane |
|--------------------|----------------|----------------|
| Albumen | Eggshell | Yolk |
| Blastoderm | Chalaza | Air cell |

This completes the labeling task. Each part of the egg has been identified and explained based on its function and location.