Yes or No Yes or No Yes or No Outcome #7 Making Muscles Move Name: _____________________ Date: ________________ Making Muscles Move Part A: In this activity, you’ll make models of your arm muscles and explore how they work. Materials: Two cardboard strips, 2 inches by 6 inches (cereal boxes work well for this) Two paper fasteners Tape A hole puncher A red balloon and a blue balloon Methods: 1. Punch a hole in each cardboard strip, about 1.5 inches from the end, and in both ends of each balloon. 2. Tape the two strips together end to end so that the holes are about 3 inches apart. The strips will bend like a joint on the taped side. (One strip represents the upper arm; the other represents the lower arm; the joint represents the elbow.) 3. With a paper fastener, attach the two balloons to opposite sides of the arm,” “upper with the red balloon on the taped side. Attach the other end of each balloon to the “lower arm” in the same way. 4. Bend the at the noticing what happens to the balloons. “arm” “elbow,” Conclusion Questions 1. What happens to the red balloon when the blue one contracts? What happens to the red balloon when the blue one relaxes?
Yes or No Yes or No Yes or No Outcome #7 Making Muscles Move Name: _____________________ Date: ________________ Making Muscles Move Part A: In this activity, you’ll make models of your arm muscles and explore how they work. Materials: Two cardboard strips, 2 inches by 6 inches (cereal boxes work well for this) Two paper fasteners Tape A hole puncher A red balloon and a blue balloon Methods: 1. Punch a hole in each cardboard strip, about 1.5 inches from the end, and in both ends of each balloon. 2. Tape the two strips together end to end so that the holes are about 3 inches apart. The strips will bend like a joint on the taped side. (One strip represents the upper arm; the other represents the lower arm; the joint represents the elbow.) 3. With a paper fastener, attach the two balloons to opposite sides of the “upper arm,” with the red balloon on the taped side. Attach the other end of each balloon to the “lower arm” in the same way. 4. Bend the “arm” at the “elbow,” noticing what happens to the balloons. Conclusion Questions 1. What happens to the red balloon when the blue one contracts? What happens to the red balloon when the blue one relaxes?
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