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Networks

This series of five one-hour lessons covers computer networks at secondary-school level. The objectives of the lessons are: *Describe what a network is, the difference between a LAN and a WAN and identify three network topologies. *Describe pieces of hardware that are needed in a network. *Explain what an IP...

Ionisation Energy

This resource, from the Royal Society of Chemistry, covers ionisation energy, structure of the atom, intra-atomic forces. Students are provided with a diagram of the electronic structure of an atom and twenty statements which refer to it. They have to decide whether it each statement is correct or not.

The...

Types of Chemical Reaction

This resource, from the Royal Society of Chemistry, provides students with a range of chemical reactions which they have to identify.

The types of chemical reaction which are included are: displacement, neutralisation, oxidation, reduction and thermal decomposition reactions. It is primarily designed for...

An Analogy for the Atom

This resource, from the Royal Society of Chemistry, is designed for students who have already studied the topic of atomic structure, intra-atomic forces and ‘the atom is a tiny solar system’ comparison. Students are provided with diagrams showing a simple model of an atom and of the solar system and asked questions...

Chemical Stability

This resource, from the Royal Society of Chemistry, asks students to compare the stability of various triads of related species.

There are seven questions in the set, the first four compare an atom with two of its ions (sodium, chlorine, carbon and beryllium) and are suitable for able students aged 14-16 as...

Stability and Reactivity

This resource, from the Royal Society of Chemistry, is an assessment task designed to elicit students’ ideas about chemical stability and reactivity.

The activity is intended to act as a starting point for discussing these ideas in the classroom. Students are provided with diagrams representing the electron...

Precipitation

This resource, from the Royal Society of Chemistry, is designed to support students understanding and explanations of chemical reactions at the particle level.

Students are provided with diagrams representing the particles present in the reaction between silver nitrate solution and sodium chloride solution...

Chemical Comparisons

This resource, from the Royal Society of Chemistry, asks students to suggest similarities and differences between various pairs of chemical systems presented as simple diagrams, such as iron and sulfur, water and sugar solution and a variety of particle models. There are thirty-six different sets of diagrams in...

Hydrogen Fluoride

This resource, from the Royal Society of Chemistry, covers the driving force of chemical reactions and why reactions occur. Students are provided with diagrams showing electron arrangements in a hydrogen atom, hydrogen molecule, fluorine atom, fluorine molecule and hydrogen fluoride. They are asked to explain,...

Reaction Mechanisms *suitable for home teaching*

This resource, from the Royal Society of Chemistry, is intended for students studying reaction mechanisms. The comprehension, and use, of reaction mechanisms requires students to not only appreciate the electrical changes which are thought to accompany chemical reactions, but also to learn a new formalism where the...

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