Jaw bone in Movements in Animals – Class 6 Science Experiment

Chapter Name: Movements in Animals

Activity Name: Jaw bone in Movements in Animals

Activity Description:

Jaw bone in Movements in Animals - Class 6 Science Experiment

In this experiment, you will observe the movement of the jaw bone in a human and identify the joint where the lower jaw bone is connected to the skull. You will also locate the fixed joints on your own face by pressing your fingers on both sides.

Required Items:

  1. A willing friend to participate in the experiment

Step by Step Procedure:

  1. Ask your friend to open their mouth and move their lower jaw up and down as well as sideways.
  2. Observe your friend’s face carefully during the movement of the jaw bone.
  3. Look for any joint in the bones near their ear. This is the place where the lower jaw bone is joined to the skull.
  4. Now, press your fingers on both sides of your face and try to locate the joints similar to the one you observed in your friend’s jaw. These are fixed joints.

Experiment Observations:

  1. Observe the movement of your friend’s lower jaw bone as they open and close their mouth.
  2. Look for the joint in the bones near their ear where the lower jaw bone is connected to the skull.
  3. On your own face, press your fingers on both sides and find the fixed joints similar to the one near the ear.

Precautions:

  1. Ensure that your friend is comfortable and willing to participate in the experiment.
  2. Be gentle while pressing your fingers on your own face to locate the joints.
  3. Do not apply excessive force or pressure during the experiment to avoid any discomfort or injury.

Lesson Learnt from Experiment:

Through this experiment, you will learn about the movement of the jaw bone in humans and the location of the joint where the lower jaw bone is connected to the skull. You will also discover the presence of fixed joints on your own face.

This activity provides a practical understanding of the skeletal structure and its role in facilitating movements in animals, specifically in the context of the jaw bone.

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