Science

Y9 Science

Key Stage 3

Year 9

Reactivity

This lesson looks at how to calculate the number of subatomic particles in an atom and how to draw and write the electron configuration for atoms.

Electron configuration

This lesson looks at why atoms react and how this can lead to the formation of ions. We also look at an example reaction in which ions are involved in a chemical bond.

Ions

This lesson explains how to write and interpret chemical formula and how to calculate relative formula mass.

Chemical formulae

This lesson recaps the law of conservation of mass and will teach you how to balance symbol equations.

Symbol equations

This lesson looks at the observations made when a chemical reaction takes place, before focussing specifically on the reactions between metals and acids. This lesson also contains a practical, providing the opportunity for you to complete one of these reactions yourself.

Acids and metals

This lesson looks at what a metal oxide is, their reactions with acids and then compares these reactions to those between metals and acids.

Acids and metal oxides

This lesson looks at what a salt is and how they can be made, including details about filtration and crystallisation.

Making a salt

This lesson looks at what a metal carbonate is, their reactions with acids and how we can test for the presence of carbon dioxide gas.

Acids and metal carbonates

This lesson recaps the differences between acids and alkalis, explains what a neutralisation reaction is and looks at a method used for performing neutralisation accurately.

Neutralisation

This lesson investigates potential chemical combinations that could be used to make a particular salt, looks at how to write the perfect method and then applies this knowledge to the practical "making a salt".

Method writing

This lesson explains the difference between a hazard, a risk and a control. It also looks at how to write a risk assessment before practicing this skill.

Hazard and risk

This lesson looks at what the term vigorous reaction means, what the reactivity series is and how we can use the reactivity series to make predictions about reactions.

Reactivity series

This lesson looks at what metal ores are, why only some metals are found in ores and how to extract some metals from their ores using carbon.

Metal ores

This lesson recaps the reactivity series, looks at what a displacement reaction is and explains how to write word and symbol equations for displacement reactions.

Displacement

This lesson looks at the properties of metals, explains what an alloy is and why they can be more useful than pure metals.

Alloys

This lesson looks at how to write a hypothesis and what the different variables are for an investigation. We then apply this knowledge to a practical that investigates how we can produce a voltage.

Producing a voltage (Part 1)

This lesson looks at how to draw a results table and write a scientific conclusion. We then apply this knowledge to a practical that investigates how we can produce a voltage.

Producing a voltage (Part 2)

This lesson looks at the story of Harry Brearley, how he made stainless steel and compares stainless steel to other alloys.

Harry Brearley

This lesson recaps electron configuration, ions and the reactions of acids with metal, metal oxide, metal carbonate and alkali.

Review (Part 1)

This lesson recaps the reactivity series, metals, alloys and metal ores.

Key Stage 3, Science, Reactivity

Unit Quiz