Refill Oil Spill Junior Kit, learn to measure data and compare results, Great for teaching scientific process, Includes student lab page, Designed to accommodate 32 students working in pairs. Target Grades: K-5, To learn oil containment and removal techniques
Laser Diffraction Kit, lets students create, view, and measure diffraction and interference patterns, kit includes two laser pointers-red and green - along with a convenient mounting base and a slide set of diffraction objects