This morning we finished working with multiple pulley systems and levers. We calculated mechanical advantage, once again incorporating more math into our investigations. We studied the electromagnet spectrum and explored wave theory. we created our own waves on butcher paper manipulating amplitude and frequency. We learned that in light energy amplitude is light intensity and frequency produces various colors. In sound energy amplitude is volume and frequency produces the various pitches. Sue Sheenan stopped by to explain how participants could sign up for field trips. At lunch we finished touring the 15th floor of Wilson Hall.After lunch we explored other characteristics of light energy. We reflected a laser off mirrors to demonstrate that light travels in a straight line. We used prisms to separate light and create a spectrum. We used light boxes to mix red, green and blue light to make yellow, magenta and white light. Students learned that angles were very important to creating the reflection of images. If the angle of incidence equals the angle of reflection, we will have a perfect reflection of an image. At the same time we realized that light reflects off all surfaces and that the color of objects is caused by the absorption of certain wave lengths. Finally our day concluded by taking a field trip to the Sea quest experiment where we met scientist Josh Ruby who explained how they were studying muons.