1. By: Gerard Z. (G-unit) Vincent S. (Cowboy) Anthony D. (Ant)

2. Submarine

3. Description * Describe how the transportation device works. A submarine goes under the water without sinking. It also carries nuclear bombs that attack. *Source www.Navymill.com

4. Materials *List the materials used to make the device. Steal, Felixible Steal, Titanium or GRP (Glass Reinforced Plastic) *Source www.Navymill.com

5. Energy *Describe the energy changes that take place when the device operates. Nucular reactors, steam turbine,reduction gearing, diesel engines and batteries. *Source Sciencehowstuffworks.com

6. Forces *Identify the forces acting when the device operates An unbalanced force acts on the submarine. *Source Sciencehowstuffworks.com

7. Motion *Describe the motions that occur when the device operates. A submarine sways left to right and that can cause an unbalanced force. *Source answers.com

8. History *Tell who invented the device -Cornelius Drebble *When was it first used?- 1776 *Where was it first used?- New York Harbor *Describe how it was made…- By underwater vehicles *Source History Navy mill.com

9. Importance *Describe how the transportation device improved getting around Wars, search and rescue *Source Answers.com

10. Improvements or Modifications *Describe a way to make the device work better or do some new task *To make it better you would and a few more propellers