This presentation covers OCR Gateway Physics 9-1 P8.2.3 The National Grid This PowerPoint is a whole lessons included with student activities and animated answers. Structure of the National Grid Step-up and Step-down transformers How transformers increase the efficiency of the National Grid Number of turns and potential difference Current and potential difference in primary and secondary coils

This presentation covers OCR Gateway Physics 9-1 P8.3.2 Our Solar System This PowerPoint is a whole lessons included with student activities and animated answers. Structure of the solar system Nuclear Fusion Evolution of large stars Evolution of Sun like stars Gravitational force and force from nuclear fusion

This PowerPoint presentation with worked examples and student activities covers: Topic 1.3 of Science Fundementals of the OCR Applied Science Spec. Elements react together to form compounds by i.e. ionic bonding covalent bonding

This PowerPoint presentation with worked examples and student activities covers: Topic 6.2 of Module 1: Science Fundamentals of the OCR Applied Science Spec. Structure of metals, giant covalent, and simple molecular structures. Properties of metals, giant covalent, and simple molecular structures. Forces and bonds of metals, giant covalent, and simple molecular structures. Phase diagrams – interpreting and calculating changes. Sublimation and phase diagrams.

This PowerPoint presentation with worked examples and student questions covers: • Electrons reside in energy levels (shells) around the nucleus • The electronic configuration of elements up to 20 is 2,8,8,2 • Groups and periods of the periodic table • Drawing electron configurations

This PowerPoint presentation with worked examples and student questions covers: • Definition of giant covalent structures • An empirical formula shows the simplest whole-number ratio of the atoms of each compound. • Melting and boiling point of simple molecules • Compare physical properties of simple molecules and giant covalent lattices.

This PowerPoint presentation with worked examples and student questions covers: • pH 0 - 14 scale with household examples • Definitions for acids, bases and alkali substances • Universal indicator and pH probes • Using equalities and inequalities

This PowerPoint presentation with worked examples and student questions covers: • Concentration of fruit squash • Comparing strong and weak acids • pH and hydrogen ion concentration • Titration curves

This PowerPoint presentation with worked examples and student questions covers: • Definition of Alkali Metals • Properties of Alkali Metals • Trends and anomalies in Group 1 (Density, Melting Point) • Reactivity of Group 1 Alkali Metals • Electron configuration of Group 1 Alkali Metals

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: • Properties of Noble gases • Trends and anomalies in Group 0 (Density, Melting Point) • Reactivity of Group 0 Noble gases • Electron configuration of Group 0 Noble gases

This PowerPoint presentation with worked examples and student questions covers: • Group 1, 2, 7, 0 electron structures • Reactivity series for metals • Equation for metals and water • Equation for metals and acid • Displacement reactions for metals

This PowerPoint presentation with worked examples and student questions covers: Prefixes mono- and poly- Alkanes and alkenes functional groups Saturated and unsaturated carbon bonds Addition polymerisation reactions Conditions needed for polymerisation reactions How monomers form polymers Repeat units and monomers

This PowerPoint presentation with worked examples and student questions covers: Block notation for hydrocarbons Amino acids functional groups Amino acids forming proteins through condensation reactions Forming polyesters through condensation reactions Forming polyamides through condensation reactions Comparing polyesters and polyamides Conditions for condensation polymers

OCR AS Chemistry: 11.5 Introduction to Reaction Mechanisms This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Covalent bonds Homolytic fission and heterolytic reactions Curly arrows in reaction mechanisms Identifying addition, substitution, and elimination reactions.

OCR AS Chemistry: 11.4 Structural Isomerism This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Definition for Structural Isomers Moving functional group to form isomers Aldehydes and ketones being structural isomers Skeletal formula and structural formula

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.

OCR AS Chemistry: 12.1 Alkanes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Sigma bonds (σ-bonds). Tetrahedral shape and bond angles Fractional distillation Chain length and boiling point Branching and boiling point London Forces

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

This presentation covers OCR Gateway Physics 9-1 P3.2.6 Circuit Calculations. Measuring current and potential difference Adding resistors in series and parallel Rearranging Ohm’s Law Rules for series circuits Worked solutions to series circuit exam questions Rules for parallel circuits Worked solutions to parallel circuit exam questions