MS-PS4-2
Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
- Tech
Cell phones on the brain
When an active cell phone is pressed against the ear, the brain gets busier.
- Environment
Underwater racket
The oceans are getting louder, and scientists want to know what that means for marine residents.
- Physics
Explainer: What is a laser?
Lasers are the brightest source of light on Earth and produce the purest form of color possible.
- Physics
Explainer: How a synchrotron works
Giant magnets direct superfast light into beams up to 30 million times as bright as those produced by a laser pointer.
