Learners will build an open spectrograph to calculate the angle the light is transmitted through a holographic diffraction grating. After finding the desired angles, the students will design their own spectrograph using the information learned. The... (View More) activity is part of Project Spectra, a science and engineering program for middle-high school students, focusing on how light is used to explore the Solar System. (View Less)

Learners will work in groups to design a water rocket that will be tested. They will be able to test two preliminary designs before deciding on the final one for the contest. Prior to launch, the rockets are put through a series of design tests.... (View More) This is activity 7 of 7 in Dynamic Design: Launch and Propulsion. (View Less)