In the early 1900s the only way to travel from the Atlantic Ocean to the Pacific Ocean by boat was to go all the way around South America, a long and dangerous trip. The United States became very interested in finding a shortcut route so ships could complete the journey in less time. Watch this video to learn more about how the Panama Canal became the solution to this problem.
Here is another video describing how the Panama Canal works.
Read the following article to learn some more information:
http://everydaylife.globalpost.com/important-historical-panama-kids-13630.html
Click here to do online puzzles of canal equipment:
http://www.pancanal.com/eng/persona/k/juegos/jigsaw-02.html