CK-12 Foundation
Ck 12: Earth Science: Wind Waves
[Free Registration/Login may be required to access all resource tools.] How winds form ocean waves.
TeachEngineering
Teach Engineering: Measuring Distance With Sound Waves
Students learn about sound waves and use them to measure distances between objects. They explore how engineers incorporate ultrasound waves into medical sonogram devices and ocean sonar equipment. Students learn about properties, sources...