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Delivering What Muscles Need

1/23/2015

Which activities increased your heart rate the most?
Which activities increased your heart rate the least?
Was the order in which you ranked the activities accurate? (It's good to be wrong!) Explain.
What changes did you notice about your heart rate as you became more active?
Why do you think your heart rate changed when you were more active? What inference can you make? (Use pages 65–66 of your reference book to help you answer this question.)

1. The activities that increased my heart rate the most was running in place because I was moving faster that any other activity I did.
2. The one that increased my heat rate the least was sitting. Because I was relaxing and not moving at all.
3. Yes is accurate because Everything almost go's up at least 20 or less.
4. I noticed That everything went up about 20.
5.I think it increased because it went up lots I think this happened because , I was moving more. I

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Clothespin Pinches

1/14/2015

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Was it difficult to use the same technique throughout the whole experiment?
How did you hands and fingers feel BEFORE, DURING, and AFTER the experiment?
Describe how your data changed over time.
What errors or inconsistencies might have affected your results?
Why did your hand strength change over the course of this experiment?
How do you think your muscle cells get oxygen, nutrients, and water to make the energy they need to function?
What do you think you could have done to prevent your muscles from tiring?
What should you do if you experience muscle fatigue in the future?

1. Yes. It was difficult because my hands would get tired and they would need a break but we had to use the same fingers and technique.
2. Before they felt normal and relaxed. During they felt tired and like I could never use them again. After they felt dead and they would never work again.
3. My data changed by going up and down over and over again.
4. I think what effected me the most was I was pinching the clothespin in the wrong spot and it kept falling out of my hands
5. My hang strength changed because I kept finding better ways to pinch my clothespin so that it was not falling out every time.
6. I think they get energy by pinching so fast and all the movement. And also all of the breaks that we were gave.
7. I think we could of let them rest longer after the experiment so they could get all the energy.
8. I think that you should pinch longer and rest longer instead of resting for a short time.

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Creating an Elbow Joint

1/9/2015

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How many bones did your model need? How many muscles did it need?
How were your pretend muscles similar and different to real muscles?
What would happen if the ligaments of the models were overstretched or torn? How would it affect the way the models could operate?
Explain what ligaments, tendons, and cartilage are.
What made this activity fun?
What made this activity challenging?

1. Our model needed 3 bones and 2 muscles in the elbow model.
2. Our pretend muscles are similar because they are attached to the radius and the ulna to contract the bones. The ways that are muscles are diffrent are that they are not the same shape and they don't spread all the way across the humerus bone.
3. If the ligaments of the models were torn our model would split into two parts and would not be connected to each other anymore. It would effect how it would operate because it would not be able to move back and forth, because would be two parts.
4. Ligaments are stretchy tissue that connects one bone to another bone. Tendons are material that connects bone to muscle. Cartilage is a thin tissue that is in between two bones so that they do not rub together.
5. Yes! I think that it was fun but it was also very challenging because we had to keep switching our ideas so that everything would work.
6. What made this activity challenging was that we started last and only some of are materials where there.

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Delivering What Muscles Need

Clothespin Pinches

Creating an Elbow Joint

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