TeachEngineering
Teach Engineering: The Three Color Mystery
Learners are introduced to an engineering challenge in which they are given a job assignment to separate three types of apples. However, they are unable to see the color differences between the apples, and as a result, they must think as...
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...
CK-12 Foundation
Ck 12: Physical Science: Characteristics of Waves
[Free Registration/Login may be required to access all resource tools.] Covers three types of mechanical waves - transverse, longitudinal, and surface - and their characteristics. Includes labeled illustrations and two video animations.
University of Wisconsin
The Why Files: 3 2 1 Contact, Don't Touch That Dial
A discussion of reflecting telescopes and their use in radio astronomy. The types of information gained from and the research emphasis fueled by such telescopes is described. Site uses Hollywood references and a humorous style.
TeachEngineering
Teach Engineering: Energy
Through nine lessons, students are introduced to a range of energy types--electrical, light, sound and thermal-as well as the renewable energy sources of wind, hydro (water) and solar power. Subjects range from understanding that the...
PBS
Nova: Seismic Signals
Scientists have determined that the earthquakes preceding volcanic eruptions are different than those that precede earthquakes. Discover the sounds and wave patterns produced by the three different types of volcanic seismic activities.