Have you ever stopped to marvel at your hands?
Help children discoverhow do hands workwith this fun, hands-onhuman body project.
How do Hands Work
Your hands are truly amazing!
About one quarter of all our bodys bones are found in our hands.
There are over 30 muscles in the hand, working together in a highly complex way.
Movements of the hand are mostly started by muscles in the forearm.
Now, carefully use scissors to cut out the hand and wrist template you created.
Secure with packing tape or scotch tape.
Human Body Project
Now add the long metacarpus bones and affix them with packing tape as well.
You may want to have your child use a sharpie and label the hand bones.
Tape the string to the back of each finger and thumb.
The yarn is the muscle tendon.
Thread the yarn tendons through the bones on each each finger (and thumb).
Once each string is through, make a loop for each string.
Human Body Science Experiments
Insert a finger in each string pull.
Known as the carpal tunnel, this passageway is made up of strong connective tissue and carpal bones.
NCBI.com
Human Body Muscles for Kids
In our example the string is the muscle tendon.
Each time the muslcle contracts (string is pulled) the finger moves.
The muscle is controlled by the stronger muscles in the wrists.
Each palm has additional tendonds to offer protection and additional movement.
This is such a great visual and explanantion for how hands move!
This project is super memorable and fun for all ages!
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