Wooden or plastic levers (e.g., rulers or sticks). Fulcrum supports (e.g., small blocks). Weights or small objects..Set Up Lever: Place the fulcrum under the lever and position the weights. Test Lever: Apply effort to lift the weights and observe the movement. Record...
Pulley kit or materials to make a simple pulley (e.g., string, small wheel, hook). Weights or small objects to lift..Assemble Pulley: Set up the pulley system according to the instructions. Test System: Use the pulley to lift weights or objects. Observe and Record:...
Wood craft sticks Rubber bands Plastic bottle caps Hot glue gun and glue sticks Small objects to launch (e.g., marshmallows, small balls) Ruler Scissors (for cutting rubber bands if necessary) Introduction: Discuss the historical use of catapults in the Middle Ages,...
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