This simulation allows students to:

• Demonstrate an understanding of acid and base strength, given acids or bases at the same concentration, by:

1. Relating the strength of an acid or base to the extent to which it dissociates in water
2. Identifying all...

This simulation explores the Beer's Lambert Law. It allows you to make colourful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer.

Curriculum links include:

• Beer's law
• Solutions
• Concentration
• Molarity...

This multimedia package was developed by the Gatsby Science Enhancement Programme to help students understand the interesting and unusual properties of a range of fluids, semi-solids and solids. Published originally as a CD-ROM, the materials contain a collection of...

This resource is based around the chemical composition of the human body and the origin of elements in the universe. Students can input a mass in the spreadsheet to see what proportion of their mass is from elements created in the Big Bang, in stars and in supernovae. Graphs are also shown for the relative...

This resource was produced by the Association of the British Pharmaceutical Industry (ABPI) as part of their 'At Work With Science' materials. In this interactive resource, students are introduced to the legal aspects of the Health and Safety regulations; the concept of risk assessments and how to develop them....

This simulation explores the factors which determine the concentration of a solution. It illustrates the relationships between moles, litres and molarity by adjusting the amount of solute and solution volume.

The moles of solute and the volume of solution (water) can be changed using sliders to make...

This simulation allows students to explore molecule shapes by building molecules in 3D and seeing how the molecule's shape changes as atoms are added.

It can be used to demonstrate that:

*The molecule shape is due to repulsions between atoms.

*The bonds are not fixed in place, but can rotate...

From the Association of the British Pharmaceutical Industry (ABPI), this interactive resource halps to answer questions that students have about the production of medicines and the careers available in the pharmaceutical industry.

There is a wide variety of questions on topics as varied as:

• The...

This simulation allows students to test the pH of substances like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. It can be used to visualise the relative number of hydroxide ions and hydronium ions in solution, switch between logarithmic and linear scales, and investigate whether...