Nature of Liquid & Gas

Fire Syringe

Turn on to Ideal Gas Law with this explosive demonstration! As air compresses, the temperature increases and combustible material bursts into flames. Also is great for discussing adiabatic compression (rapid compression that raises air temperatur... More.

Separating Mixtures by Density

A great hands-on activity for demonstrating buoyancy and density. The set contains small pellets made of four different polymers with different densities. The mixture can be separated out using flotation. One type of pellet will float in tap water, ... More.

Hydrostatic Studies Kit

This comprehensive kit explores critical concepts at a budget-friendly price. Show that a body immersed in water displaces its own volume of water and use this concept to measure irregular volumes. Demonstrate that buoyancy is a function of volume o... More.

Pascal’s Ball

Easily demonstrate Pascal’s Law and show that water pressure transmits in all directions with this simple device. The device consists of a 3" hollow sphere with ten equidistant nozzles connected to a hand pump. Simply immerse the ball in water... More.

Surface Tension of Water

Explain the principle of high surface tension as water acts like a membrane stretched across the surface preventing the sulfur particles from sinking. A wetting agent lowers the surface tension and allows the particles to fall through the surface to the... More.