Watch Concepts Come Alive
Seeing an experiment performed makes learning even more powerful. Below are demonstrations from our books, where simple materials are transformed into meaningful exploration. These activities show how everyday objects can reveal important learning principles in action.
Expansion of Air
(From the book: Air and Water)
The Expansion of Air experiment illustrates how air expands when heated. Using a glass bottle and a coin, learners observe how warming the air inside the bottle increases air pressure, causing the coin to move. This simple activity clearly demonstrates that air, though invisible, occupies space and responds to temperature changes. By observing the movement of the coin, learners gain a deeper understanding of air pressure and thermal expansion — concepts often explained theoretically but rarely experienced directly.
Loop Glider
(From the book: Air and Water)
The Loop Glider experiment demonstrates how air resistance, balance, and aerodynamic forces influence motion. By attaching two paper loops to a simple straw, learners create a lightweight glider that travels smoothly through the air when thrown.