Frequently Asked Questions Thousands of web sites for educators and students. Support for long-term classroom planning and professional development. Information covering important topics for today's educators and parents. The goal of the Teachers' Lab is to provide teachers with a deeper understanding of commonly taught math and science concepts. Throughout the activities, students explore how colors interact, how astronomers use color as a scientific tool, and how multiple light sources produce shadows of differing darkness and length.
Students also explore how the images from their two eyes are slightly different because of parallax.
Each activity provides a scientific explanation of the results, modifications for lower grade levels, ideas for extension activities, and links to other hands-on activities. In another activity, students identify all the elements they can detect in a mystery star's atmosphere by comparing spectra for some elements common in the atmospheres of stars and the spectrum of the mystery star.