1. What simple machine is in a windmill? Prediction: Wheel or Gear

2. Thin card Tracing paper Stapler An empty shoe box Two wooden dowels about 8cm long One or two wide rubber bands Masking tape Scissors, ruler, pencil

3. 1.Make 4 sails on the tracing paper then cut them out and make a hole at the bottom of each sail. 2.Staple the 4 sails togeather. 3.Cut 1 piece of dowel 4cm longer than the width of the box. 4.Use the pen and make a hole through one side of the box 5cm from one end. Do the same on the other.

4. 5. Put the rubber band through the 2 dowels. 6. Next stick the lid on. 7. Turn the lower dowel to make the upper dowel spin. 8. Slid the sails over the upper dowel by using the marking tape. 9. Spin the lower dowel and the upper dowel will spin.

5. Our machine works by spinning the lower dowel one way or the other. Spin the lower dowel and the top one moves because there is a rubber band in the middle. This simple machine is a wheel,and the machine is a windmill.

7. Yes our prediction was right the right answer because you spin the dowel to make a gear to go in the windmill.