A non-binding agreement setting forth the basic terms and conditions under which an investment will be made. A term sheet serves as a template to develop more detailed legal documents.
Natural Chalcanthite crystals are very rare in nature. Well-formed crystals are easily grown synthetically from copper sulfate solutions. This can be done by dissolving a readily available chemical salt called copper sulfate, and then letting the water evaporate. This leaves behind a crystallized mass of Chalcanthite which can crystallize beautifully if grown properly. If a Chalcanthite crystal looks to good to be natural, it probably is, as good natural crystals are very hard to come accross.
HeLa Cells and Chromosome Spreads. CellServ produces a kit that will allow students to use HeLa cells in the lab to observe cells and chromosomes under the microscope. Students are given microtubules containing HeLa cells that have been fixed in solution prior to metaphase in mitosis. Students use pipettes to drop the cell solution onto clean microscope slides and then stain the slides with stain that is included in the kit.