Muscles and Tendons Introduction Watch a four-minute video, " How Do Our Bodies Move ?" You can also watch two six-minute videos, " How Your Muscles Work " and " The Muscular System ". Activity 1 Use playdough to add muscles to a skeleton model. Curriculum areas: S12c Activity 2 Make various motions slowly, feeling for the muscles moving: make a fist, flex your elbow, kick in slow-motion, etc. Curriculum areas: S12c, S06a Lunch Snack Muscles need protein to grow. Find high-protein foods to eat, like eggs, nuts, meat, cheese, or beans. Curriculum areas: S13c Activity 3 Make a hand tendons model using straws and string. Add it to the anatomy model outline. Curriculum areas: M08d, S12c Activity 4 Use long balloons and cardboard tubes to demonstrate how muscles work . Curriculum areas: S12c