Explore music frequency and how it manifests in the sounds around us. Change the frequency balance in common sounds, such as the sound of a rooster, ferry, lion and laughter, and note the effects the changes have on the sounds. Details »
Classroom Resources
Conduct experiments that demonstrate the relationship between volume and surface area. Consider how scientists are creating more efficient solar panels by increasing their surface area at the nanoscale. Details »
Discover the minuscule world of nanotechnology as you investigate the macro, micro, nano and atomic scales. Conduct experiments to help you envision the size of a nanometer. Details »
Sharpen critical thinking through an examination of basic problem-solving skills. Understand that transformations can be undone by reversing the steps in the process. Details »
Experiment with different shapes to discover which ones will tessellate and which ones won't. Create your own tessellation by adding color to tessellated shapes. Details »
Support for pbs.org provided by: