There are interactive videos & labs and inquiry-based lessons aligned to national standards by grade level. The idea is to help kids relate to the science they experience everyday and understand it better.
How to make a homemade flashlight . 1 flashlight bulb (Standard – NOT threaded) 2 AA Batteries 1 Large cereal box to make the main body parts or long) 1 soda can for making the bulb holder and switch mechanism ----
Free Science Internet Resources - January 2012 via The Lesson Guide