TeachEngineering
Teach Engineering: Protecting the Mummified Troll
Students are introduced to the (hypothetical) task of developing an invisible (non-intrusive) security system to protect the school's treasured mummified troll! Solving the challenge depends on an understanding of the properties of...
TeachEngineering
Teach Engineering: Security System Design
Middle schoolers apply everything they have learned about light properties and laser technologies to designing, constructing and presenting laser-based security systems that protect the school's mummified troll. In the associated...
Khan Academy
Khan Academy: Swine Flu and Laser Treatment
Read this passage and study the graphics to answer the five-question quiz concerning structure, growth, physiology, and genetics of prokaryotes and viruses.