Preserved Bullfrogs, Triple Injected, Injection Type: Single Injected, Preservative: Formalin, Amphibian anatomy, General dissection, High quality preservation, larger study specimen for students to learn vertebrate anatomy, dissection skills, Size: 6-7in
Solar Balloon, This 50 foot long by 29in diameter Solar Balloon, 400 feet of string, complete instructions and science learning guide balloon, Demonstrates buoyancy, convection, thermodynamics and solar power, Teaches Bernoullis Principle and Pascals Principle, For ages 14 plus
Density Materials Kit Solids, 14 Piece,Consist Fourteen Materials In The Form Of Rectangular Blocks, Intended To Familiarize The Student With The Appearance, 'Feel', Texture, Hardness And Density Of A Range Of Substances, Brass 20 X 20 X 50 mm, Iron 40 X 40 X 20 mm