Perisphinctes Fossil Replica, Ammonites like this one swam through the ocean while dinosaurs roamed the earth, Made from a resin designed to last through heavy classroom and laboratory use, Fossil replica of an ammonite from the Mesozoic 1.5in (4cm)
Photosynthesis and Respiration Model Set, Fundamental processes in the flow of energy, Students build glucose and oxygen molecules at the giant chloroplast, Move the molecules to the mitochondria and reassemble them into carbon dioxide and water molecule