Simple+Machine+Project

Simple Machine Project

1. Background information A. Student's read about the six types of simple machines. B. Model each type of simple machine and let the students work with it. 1. Levers - Students open a paint can, sweep the floor, and have wheelbarrow races. Demonstrate how changing the position of the fulcrum changes the balance of the lever. Which way is easiest to lift an object? (Use a ruler, weights, and a cork as the fulcrum.) Teach the students about Work = Force x Distance. 2. Pulleys - Demonstrate fixed pulleys and movable pulleys. Allow the students to experiment with pulleys, ropes, hooks, and weights. 3. Wheels and Axles- Demonstrate with toy cars, a reel of a fishing pole, and a doorknob. 4. Inclined Planes - Use a dolly and a weight and have students transport weight from one side of the room to the other. Next use an i inclined plane and have the students move the same object. Which was easier? If possible, use electric toy cars and demonstrate the same principles. 5. Screws - Make an Archimedes' Screw Allow students to use a screw and a screw driver to attach something to a piece of wood. 6. Wedges - Have students hold two books together as tightly as possible. Another student then tries to separate the books. Next have the student try to separate the books by using a wedge. Slice carrots and share with the students. Discuss wedges.

2. After students have learned about each type of simple machine, have the students complete a "Simple Machines Scavenger Hunt" as homework. They must name the machine, where they found it, the type of simple machine, draw a sketch, and write a description. 3. Sing a Simple Machines song to the tune of Jingle Bells. 4. Final project: purpose. They write a description of the purpose of their machine and how it works. They share their ideas with the class.
 * Students draw a dream machine on poster board. They think of something they need or would like to create for a specific
 * Next, they create a simple machine using supplies from home. The machine must have 3 different simple machines in it. They present it to the class and show how it works. They must be able to identify each simple machine. They also share about the process of making their machine. For example, what problems they encountered and how they solved the problems. (The students usually try to make their machine they have drawn, and then realize they have to downsize it. )