Create a cauldron of bubbling fun with this Halloween-themed demonstration idea. Using dry ice, Steve Spangler creates a crystal ball. If you compare the sublimation of dry ice to the melting of water ice, it is a wonderful way to...

Using sound waves, Steve Spangler demonstrates the properties of a non-Newtonian fluid. When the fluid is placed on an amplifier, it changes into the most amazing shapes. Your class will love demonstrating this process in class.

Make a strangely-moving "monster" out of cornstarch and water. The mixture produces a colloid with properties of both a liquid and a solid. Place the material over a stereo speaker, turn up the music, and watch it dance! This is a fun...

This is a strong visual display of density. It requires a mountain of materials and is quite messy, so you most likely will not want to have lab groups perform this activity. You could demonstrate it for your class when exploring the...

There are four states of matter: solid, liquid, gas, and plasma. As this clip describes, the key to changing the states of matter is the addition or subtraction of energy. Learn about molecules, heat, plasma, and the science behind...

This strawberry dropping into milk looks like a commercial for ice cream or yogurt! Show it to your physics class when you are talking about gravity and liquid, but perhaps you should have some strawberries on hand in case learners get...

Watch the cornstarch science experiments, and see how it stops behaving like a normal liquid when vibrated at a high speed. [2:45]

A crash course on London dispersion forces, hydrogen bonds, cohesion, adhesion, viscosity, capillary action, surface tension, and properties of liquids. [11:04]

Paul Andersen compares and contrasts the properties of solids and liquids. Solids have a more organized structure which can either be amorphous or crystalline. In liquids the intermolecular forces are lower and so the molecules can show...

This video segment adapted from ZOOM offers a clever demonstration of buoyancy by showing how to pour a cup of air into a cup filled with water. [1 mim, 42 sec]