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1. Our model needed three bones and only two muscles.
2. The fake muscles were similar because they pulled and didn't push. They were different because they were pieces of string and they weren't in pairs.
3. What would happen, would be that they wouldn't be attached and they would be able to turn 360º.
4. Ligaments hold bones and cartilage at joints. Tendons attach muscles to bones. Cartilage keeps the bones from rubbing up against each other.
5. What made the activity fun was making the elbow joint because you had to think up some pretty funny ideas so that your elbow joint would work.
6. The hard part was thinking are way around problems because it was sort of hard to think up an idea.