Elements vs Alloys

We compare melting points of lead and tin to the melting point of their alloy, solder. By timing how long it takes samples of each to melt, we discover that the melting point of solder is actually lower than those of both lead and tin.

Chemistry - Periodic Table - Learning Points.
Alloys are mixtures containing at least one metal element.
Alloys have different physical properties to their constituent elements.
Lead is a toxic metal.

A Twig Experiment Film.
Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.