W8 Review (3rd grade)

Choose the correct option.

System of muscles in the body...

• skeletal system

• muscular system

• digestive system

This is a semi-solid material, it helps to protect bones from impact.

• joints

• ligaments

• cartilage

This is a strong, hard part of the skeletal system...

• muscle

• bone

• muscular system

A baby's body has about...

• 300 bones

• 206 bones

• 200 bones

This is an image of....

• brain

• spinal cord

• nerve

This is an image of.....

• brain

• spinal cord

• nerve

Select if is a voluntary or involuntary movement:

Writing...

• voluntary movement

• involutary movement

Select if is a voluntary or involuntary movement:

Sneezing...

• voluntary movement

• involuntary movement

Select if is a voluntary or involuntary movement:

Running...

• voluntary movement

• involuntary movement

Select if is a voluntary or involuntary movement:

Heartbeat...

• voluntary movement

• involuntary movement