Experiment with the world of air, atmosphere, and pollutants! This kit presents information pertaining to the characteristics of the air and the atmosphere, and how pollutants affect these. It demonstrates the principles of absorption and the effects of air pollution on such common things as plants and metals. Air pollutants are created and treated, thus enabling the students to see and understand the causes and effects of air pollution and the necessity and means for control. Classroom activities include temperature inversion, the creation of two air pollutants, treatments of air pollutants, and the effects of air pollution. All apparatus, chemicals, ten 35mm slides, seven overhead transparency masters, and teacher’s manual are supplied to perform various experiments.
Mystify your friends as your UFO hovers and seems to defy gravity!
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
Giant 3D shark wall art to inspire adventure stories and lively conversations.
Create all kinds of marble run combinations with this 80-piece Marble Run set!
This kit allows to build up to 3 different robots!
Make the coolest 3D pin art on your desk with this amazing desk toy.