MICROSCOPE SLIDES & PLASTIC TUBE This kit contains the lab materials like test tubes and chemicals that you'll need for completing most experiments in the Christian Light Science Lightunit 1100 series. A balance is recommend. While our kits conveniently contain most of the items you'll need to complete the labs, they do not include some common household items or more expensive items like microscopes and live cultures. Please see the kit content guide for items you might wish to order separately.