This PowerPoint presentation with worked examples and student questions covers: • Differences between physical and chemical changes • Explain why physical changes are generally easier to reverse

This PowerPoint presentation with worked examples and student questions covers: • Relative atomic mass • Understanding chemical formulas • Relative formula mass

This PowerPoint presentation with worked examples and student questions covers: • State a use for metals • Describe the structure of metals • Why metals make good electrical conductors. • Metals on the periodic table

This PowerPoint presentation with worked examples and student questions covers: • Define melting and boiling point of a pure substance. • Predict the state of matter of substance at certain temperatures. • State what the state of matter is of a substance due to the type of bonding. • Metals, covalent structures, ionic structures and simple molecules.

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.2 of Module 21: Product Testing Techniques. 2.2 Laboratory testing during development i.e.: • formulation • production • quality control and assurance • after sale monitoring.

This PowerPoint presentation with worked examples and student questions covers: • State processes of the carbon cycle. • Define the word allotrope. • Explain why allotropes have different properties. • Graphite, graphene, and fullerenes

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.1 of Module 21: Product Testing Techniques. 2.1 Types of testing i.e.: • in-vitro • in-vivo • titration • extraction and separation

This PowerPoint presentation with worked examples and student questions covers: • State the number of elements in a chemical formula. • Determine the chemical formula from display formula. • Dot and cross diagrams for bonded atoms

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.3 of Module 21: Product Testing Techniques. 2.3 Effectiveness of test • Appropriate test method • Data collection validity and reliability • Consistent chemical composition • Hazards and risks of use

This PowerPoint presentation with worked examples and student questions covers: • Naming electrolysis experimental set up • PANIC convention for electrodes • Electron transfers at electrodes • Half-equations for anode and cathode

This PowerPoint presentation with worked examples and student questions covers: • Definition of Alkali Metals • Properties of Halogens • Trends and anomalies in Group 7 (Density, Melting Point) • Reactivity of Group 7 Halogens • Electron configuration of Group 7 Halogens • Forming salts with alkali metals and halogens

This PowerPoint presentation with worked examples and student questions covers: • Definition of halides displacement reactions • Definition of displacement reactions • Identifying displaced products • Completing displacement reactions • Explaining experimental evidence for displacement reactions.

This PowerPoint presentation with worked examples and student questions covers: Definitions for anions, cations, anodes, cathodes. Tests for carbonate ions Tests for sulfate ions Tests for halide ions

This presentations covers the OCR Gateway Physics 9-1 P3.2.3 Resistance practical activity with the lenght of conductor and changing resistance. Combining resistors in series Ohm’s law Rearranging equations Measuring current Measuring potential difference Calculating resistance Plotting the length of a conductor (wire) vs resistance of the conductor. Interpreting data and stating relationships from data and graphs.

This PowerPoint presentation with worked examples and student questions covers: Chemical cells uses Fuel cell uses Comparing fuel cells and chemical cells Environmental impact of fuel cells and chemical cells The structure of fuel cells The operation of fuel cells Half-equations for fuel cells

This presentation covers OCR Gateway Physics 9-1 P5.1.2a the speed of sound and wave velocity. Includes student activities and full worked answers. The speed equation Measuring distance and time Simple experiment for the speed of sound Improving experiments Echoes Speed of sound experiment with microphones and oscilloscope.

This presentation covers OCR Gateway Physics 9-1 P5.3.1a Electromagnetic Reflection. Includes student activities and full worked answers. Law of reflection Labeling and measuring angles of incidence and reflection Practical activity instructions - fully animated. Reflection, absorption, and refraction is affected by wavelength of electromagnetic wave.

This presentation covers OCR Gateway Physics 9-1 P5.3.2a Electromagnetic Reflection. Includes student activities and full worked answers. Refraction the change of velocity - speed and direction Magnitude of refraction depending on wavelength Magnitude of refraction depending on optical density Refraction practical activity instructions Wave speed, wavelength, and frequency relationship in refraction