Lesson covering the evolution of our understanding of the atom. Looks at each model in chronological order: Democritus ‘Atomos’; JJ Thompson ‘Plumb Pudding’; Ernest Rutherford Gold foil experiment - includes practice questions for students Ideal for AQA GCSE (9-1) P4, Cambridge iGCSE P11 and more Developing: Recall the names and locations of the three sub-atomic particles found inside every atom. Securing: Describe the major differences between J.J. Thomson’s plum pudding model and Rutherford’s nuclear model of the atom. Exceeding: Explain how alpha-radiation may be used to determine the distribution of mas and positive charge inside atoms.

Lesson exploring the states of matter and kinetic theory, touching on internal energy - includes student video task. Developing: State the properties of solids, liquids and gases. Securing: Relate the properties of solids, liquids and gases to the forces and distances between molecules. Exceeding: Describe kinetic theory and state evidence that supports kinetic theory.

Lessons designed to build on prior knowledge of radioactivity and radioactive decay. Introducing and explaining fission of radioactive materials and fusion - includes practice questions for students. Ideal for AQA GCSE (9-1) P4, Cambridge iGCSE P11 and more Lesson 1/2 Developing: State the meaning of nuclear fission. Securing: Recall the basic design features of a nuclear fission power station and the location of the nuclear fission process. Exceeding: Recall the basic design features of a nuclear fission power station and the location of the nuclear fission process. Lesson 2/2 Developing: State the main differences between nuclear fusion and nuclear fission. Securing: Recall that fusion takes place naturally in the centre of stars. Exceeding: Evaluate in simple terms why nuclear fusion reactors are not used to produce energy in nuclear fusion reactors.

Lessons designed to build on prior knowledge of nuclear radiation. Covers Alpha & Beta decay and half-life - includes practice questions for students. Ideal for AQA GCSE (9-1) P4, Cambridge iGCSE P11 and more Lesson 1/2 Developing: Describe the composition of different nuclei in terms of protons and neutrons. Securing: State that during alpha or beta decay the nucleus changes to that of a different element. Exceeding: Use equations involving nuclide notation to represent changes in the composition of the nucleus when particles are emitted. Lesson 2/2 Developing: Recall that nuclear decay is spontaneous and random. Securing: Describe what is meant by half life, in terms of number of nuclei and activity. Exceeding: Calculate half-life from data or decay curves from which background radiation has not been subtracted.

Lesson exploring the difference between heat and temperature, touches on different types of thermometer - includes practice questions for students. Developing: Recall that we use both the Celsius and Kelvin scale to measure temperature. Securing: Describe the random motion of particles in terms of random molecular bombardment. Exceeding: State and explain the difference between heat and temperature.

Lesson designed to introduce and explain the various uses of radioactivity - including practice questions for students Ideal for AQA GCSE (9-1) P4, Cambridge iGCSE P11 and more Developing: Describe three ways that radioactive isotopes are used. Securing: Describe why it is important to use small quantities of radioactive tracers with short half-lives. Exceeding: Apply knowledge of radioactive decay to quantitatively estimate the ages of objects.

Lesson introducing and explaining what makes up atoms and isotopes - includes practice questions for students. Ideal for AQA GCSE (9-1) P4, Cambridge iGCSE P11 and more Developing: Describe the structure of the atom in terms of a positive nucleus and negative electrons. Securing: Recognise the distinguishing feature of isotopes. Exceeding: Apply knowledge of mass number to establish the identity of different elements.