Verse:Though one may be overpowered, two can defend themselves. A cord of three strands is not quickly broken. Ecclesiastes 4:12
Books:
"Understanding your Muscles & Bones" Usborne Science for Beginners, Rebecca Treays
In class we...
- estimated the number of muscles in our body and compared this to the number of bones (about 600 muscles and about 200 bones)
- demonstrated how we use muscles by creating various facial expressions
- identified the three types of muscles:
1. smooth (involuntary) for digestion and breathing
2. cardiac (heart)
3. skeletal (voluntary)
- determined the purpose of skeletal muscles is primarily to give power for movement
- learned that oxygen fuels the muscles and quickly reviewed the respiratory system
- realized that we need tendons to help attach the muscle to the bone
- used Pull-n-Peel Twizzlers and yarn to learn that many muscle fibers next to each other adds strength and power.
- learned how muscles (triceps and biceps) work in concert with one another to create movement using rulers, balloon and yarn
- identified our largest muscle: the gluteus maximus
- we colored, cut and paste our leg muscles to our body
Vocabulary words:
- involuntary muscles
- smooth muscles
- cardiac muscle
- skeletal muscle
- voluntary muscle
- oxygen
- tendons
- striated muscle
- muscle fiber
- triceps
- biceps
- quadriceps
- gluteus maximus
Video:
While cleaning up, we played this video in the corner of the room as review.Things to do at home:
- We talked about how beef would be a great specimen to better observe the muscle fibers and its alignment. However, we made sure not to be caught "playing with our food."
- Sprint in place and feel the lactic acid build-up
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