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NASA
Introduction to Real Air Traffic Control—Problem Set A
Understand what it takes to control planes safely. The first lesson in a series of six introduces the class to the air traffic control situation. The pupils develop their understanding of units used in air travel, then learn how to read...
Annenberg Foundation
Annenberg Learner: Virtual Particle Lab: Compressibility of Air
Explore the particle model of matter. Run the simulations and see if you can predict the results.