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Demonstrations › Intro

Lecture Demonstrations

Introduction to Chemistry, Matter, The Elements

A collection of different elemental materials to display to the class.


Two balloons, one filled with hydrogen and the other with helium are ignited with a lit splint, with different results.


This demo illustrates two concepts: the difference between an element and a chemical compound as well as the difference between heterogeneous and homogeneous mixtures (solutions).


The separation of iron filings from sugar will demonstrate a heterogeneous mixture.


A Geiger counter is used to detect radiation from certain objects.


A piece of granular calcium metal is added to water. After a few moments a vigorous reaction takes place producing hydrogen gas and calcium hydroxide.