NASA
Nasa: Astronomy Picture of the Day: Gamma Ray Quasar
A photograph and description of quasar 3C279 viewed in gamma-rays. It was unexpectedly discovered and was one of the brightest objects in the gamma-ray sky until it suddenly faded.
TeachEngineering
Teach Engineering: Attack of the Raging River
In this lesson, the students will discover the relationship between an object's mass and the amount of space it takes up (its volume). The students will also learn about the concepts of displacement and density.
TeachEngineering
Teach Engineering: Anchors Away
In this activity, the students will discover the relationship between an object's mass and the amount of space it takes up (its volume). The students will learn about the concept of displacement and how an object can float if it...
TeachEngineering
Teach Engineering: Rockets
This unit teaches students how and why engineers design satellites to benefit life on Earth as well as allows students an opportunity to explore motion, rockets and rocket motion. Students discover that the motion of all objects...