Across
- 4. The ribs that are not attached to the backbone.
- 6. The fins of a fish that help it the move forward.
- 7. A farmer's friend.
Down
- 1. This framework of bones protect, support and helps in movement of the body.
- 2. A soft substance that is between the bones and reduces frictiom.
- 3. A soft substance in the bones that creates blood cells.
- 5. This part of the skeletal system protects the spinal cord.
- 6. Part of the skeleton that protects the brain.