Drug testing model Set, Students act as members of a hospital administration who are responsible for developing a substance-abuse prevention/drug testing program, Students will explore the chemical and physical properties of five illicit drugs and build a model for each drug
Earth Layer Model with Seismic Wave, shows the connection between inner layers of Earth, spreading of seismic waves in the interior of Earth & Earth's magnetic field, Diameter of the Earth: 226 mm, Scale: 1 mm approx 56.41 km, Dimensions: 387 x 350 x 240 mm3