Introductory Chemistry Set, Includes: Hydrogen/Carbon/Oxygen/Nitrogen/Sulfur/Phosphorus/Chlorine/Fluorine/Bromine/Iodine atoms, Gray links for single and double bonds, Contains 120 durable plastic, Economical model set used for General or Organic Chemistry course
Kidneys with Rear Organs Upper Abdomen 3-Part. This high quality Kidney model with rear organs of the upper abdomen model combines kidney models K22/1 and K22/2 depicting the anatomy of the human urinary system and digestive system
Kidneys with Vessels 2-Part. This kidney model shows the kidneys with suprarenal glands, the outgoing ureters, the renal vessels and the large vessels situated close to the kidneys in natural size.
Lewis structure Set, Help students determine the types of bonds in a substance, draw Lewis structures, and construct models of molecules, Chemists find the use of models helpful to construct Lewis structures and study covalent bonding
Minerals Model Set, Build the most abundant silicate minerals including feldspar, quartz, olivine, pyroxenes, amphiboles, micas, clay minerals, Students Learn how models of silicate minerals are related to unit cell/crystal lattice structures, It has enough parts to construct