Listing all results (214)

Episode 601: Brownian Motion and Ideal Gases

From the Institute of Physics, these demonstrations, computer model and associated discussions help students to look at Brownian motion as evidence for the particulate nature of matter, and the macroscopic gas laws.

The learning episode looks at:
* Brownian motion and what it tells us about gases...

Episode 605: The First Law of Thermodynamics

Produced by the Institute of Physics, this learning episode includes discussions, demonstrations and questions which introduce students to thermodynamics. These include compressing and expanding gases, adiabatic and isothermal changes.

The activities look at:
* the first law of thermodynamics and energy...

Episode 105: Sources of Electrical Energy

This activity from the Institute of Physics discusses energy transfer in electric circuits and links this, by analogy, to other more familiar examples.

The activities include:
• demonstrations of human and lemon-powered batteries to illustrate that that there is nothing special about the chemical...

A Visible Activated Complex

In this classic demonstration, from the Royal Society of Chemistry, cobalt (II) chloride catalyses the reaction between hydrogen peroxide and potassium sodium tartrate. During the reaction the catalyst changes colour, showing that it is involved in the reaction.

The resource provides a list of apparatus and...

An Oscillating Reaction

In this classic demonstration, from the Royal Society of Chemistry, manganese (II) ions catalyse the reaction between bromate ions and malonic acid. The reaction oscillates between red-brown and colourless.

The resource provides a list of apparatus and chemicals needed for the experiment, together with...

Extracting Iron from Breakfast Cereal

In this classic demonstration, from the Royal Society of Chemistry, a magnetic stirrer is used to extract iron from breakfast cereal.

The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips.

Curriculum links include: food science, general...

The Equilibrium Between ICl and ICl3

In this classic demonstration, from the Royal Society of Chemistry, an equilibrium is set up between iodine chloride, chlorine and iodine trichloride. The amount of chlorine can be varied and the effect on equilibrium observed.

The resource provides a list of apparatus and chemicals needed for the...

The Combustion of Iron Wool

In this classic demonstration, from the Royal Society of Chemistry, iron wool is heated on a seesaw balance and the gain in mass is observed.

The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips.

Curriculum links include: chemical reactions...

Chemiluminescence - Oxidation of Luminol

In this classic demonstration, from the Royal Society of Chemistry, a solution of luminol is oxidised by sodium chlorate giving out a blue glow without an increase in temperature.

The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips.

...

Determining Relative Molecular Masses of Gases

In this classic demonstration, from the Royal Society of Chemistry, lighter gas is collected in an upturned measuring cylinder and the mass measured. Using the ideal gas equation, the relative molecular mass of the gas is determined.

The resource provides a list of apparatus and chemicals needed for the...

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