2. Wind-Up Toy Joe E. Hart Grade 4 Description of Lesson: Student make a wind-up toy using a soda can, rubber bands, cotton swab, paper clip, and a nut. Student measure distance of their wind-up toy. Connection to the science standards are discusses. S4P3 Students will demonstrate the relationship between the application of a force and the resulting change in position and motion on an object. a.Identify simple machines and explain their uses (lever, pulley, wedge, inclined plane, screw, wheel and axle). d. Demonstrate the effect of gravitational force on the motion of an object.

3. Materials Needed to Begin Soda Can Paper Clip Rubber band #32 Jumbo Paper Clip shaped like a fishing hook Nut Cotton Swab

4. Preparations Wash Can Pull off Tab Punch Hole in top with screw driver Punch Hole in the bottom with screw driver

5. Wedge Rubber Band onto the Paper Clip

6. Hook Rubber Band Hook Rubber Band Paper Clip

7. Send paper clip hook through bottom of can

8. Thread paper clip hook through the small hole in the top of the can

9. Thread the paper clip hook through the nut and let it drop onto the top of the can.

10. Pull the rubber band up through the small hole. Wedge the cotton swab into the rubber band above the nut.

11. Slide the cotton swab about 1/5 through the rubber band.

12. Remove the hook. Mr. Hart will need to keep the hooks for the next class.

13. Wind up your toy 40 times.

14. Set the can down and watch what happens.

15. Friction

16. Train your wind up toy to go straight.

18. Potential Energy Energy that can be used later

19. I don’t think it has enough potential energy.

20. I Think I Can? Oops!

21. Kinetic Energy The energy of an object in motion

23. The rubbing of things against each other that slows down the motion

24. The force that pulls things toward the Earth

26. Object remains at rest or remains in motion until acted on by an outside force.