Write down instructions for someone who is using robotic arm for the first time.
To use the robotic arm: 1) Hold the arm at the handle end. 2) Squeeze the handles together to close the gripping ends (bottle caps). 3) The multiple levers connected by toothpicks will extend the arm forward. 4) Position the gripper around the object you want to pick up. 5) Release the handles slowly to grip the object. 6) Move your hand to reposition the object. 7) Squeeze the handles again to release the object. The robotic arm uses multiple levers connected at pivot points to extend reach and grip objects.
Explanation
The chapter explains that the robotic arm is made using ice cream sticks joined by toothpicks, with bottle caps glued at the ends as grippers. The multiple levers work together to create an extending and gripping motion. Activity 2 describes how levers move around a fixed point called the hinge/fulcrum.