I am a very experienced chemistry teacher and have produced many quality resources which have been extensively tested in the classroom. My resources aim to engage the students and lighten the planning load for the teacher. A distinctive feature is the use of unique images, often animated, to explain concepts. The resources include interactive PowerPoints, activities and games, quizzes, worksheets with answers and exam style questions. Please review my resources!
I am a very experienced chemistry teacher and have produced many quality resources which have been extensively tested in the classroom. My resources aim to engage the students and lighten the planning load for the teacher. A distinctive feature is the use of unique images, often animated, to explain concepts. The resources include interactive PowerPoints, activities and games, quizzes, worksheets with answers and exam style questions. Please review my resources!
This bundle is ideal for classroom or home learning and covers the whole of the OCR A level chemistry specification sections 2.1 - Atoms and Reactions
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet and a lesson plan. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz. A practical activity on titration is also included.
This bundle relates to the following sections of the OCR AS Chemistry specification:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions (whole)
2.1.1 – Atomic structure and isotopes
2.1.2 – Compounds, formulae and equations
2.1.3 – Amount of substance
2.1.4 – Acids
2.1.5 − Redox
Content covered:
The changing atom
How Science Works - HSW7 - The changing accepted models of atomic structure over time.
The contributions of five scientists to the development of the theory of atomic structure.
Atomic structure
• Protons, neutrons and electrons – mass and relative charge
• Atomic number and mass number
• Isotopes
• Key definitions
Atomic masses
• Relative masses - comparison of masses to carbon-12
• Calculating relative atomic mass from the masses and abundances of the isotopes
• Mass spectrometry and its use in the above
• Calculating relative molecular and relative formula masses from formulae
• Key definitions of relative atomic mass and relative isotopic mass
Formulae and equations
• Formulae of ions
• Predicting ionic charges from the Periodic Table
• Writing the formulae of ionic compounds and elements
• Writing and balancing equations
• Common types of reaction and their equations
Amount of substance and the mole
• Relative masses and the mole
• Avogadro constant
• Calculating number of atoms
• Amount of substance
• Molar mass
• Calculating amount of substance from total mass and vice versa
• Mole triangle
Determining formulae
• Definitions and use of the terms empirical and molecular formula
• Simplest whole number ratios
• Calculations of empirical and molecular formulae, from composition by mass or percentage compositions by mass and relative molecular mass
• Calculating % by mass from the formula
• The terms anhydrous, hydrated and water of crystallisation
• Calculation of the formula of a hydrated salt from given percentage composition, mass composition or based on experimental results
Moles and gas volumes
• Molar volume of a gas
• Moles and gas volume triangle
• Summary of relationships for gases between amount of substance, volume, mass and number of molecules
• Calculating amount of substance from volume of gas and vice versa
• Ideal gases
• The ideal gas equation
Moles and concentrations of solutions
• Definitions and use of the terms concentration and mass concentration
• Concentrated and dilute
• Relationship between concentration, amount in mol and volume including concentration triangle
• Calculating concentration, amount in mol, volume and mass from given data
• Example calculations
• Mass concentrations
• Choosing the correct glassware to measure volumes
• Standard solutions
• Practical activity – making up a standard solution
• Diluting solutions and calculations
• Practical activity – diluting solutions
Moles and reactions
• Balanced chemical equations and stoichiometry
• Molar ratios
• Using molar ratio to calculate amounts in moles of reactants and products in a chemical reaction
• Using molar ratio to calculate masses of reactants and products in a chemical reaction
• Using molar ratio to calculate volumes of gases in a chemical reaction
• Flow diagrams showing steps in calculations involving quantities of reacting substances
• Example calculations – clearly illustrated in a highly visual way
Percentage yield and atom economy
• Introduction to Green Chemistry
• Reasons why reactions do not have 100% yield
• % yield and how to calculate it
• Calculations of % yield involving limiting reactant
• Atom economy and its importance in the sustainability of a chemical process
• Calculating atom economy
• Example calculations – clearly illustrated in a highly visual way
• Differences between atom economy and % yield
• Comparing chemical processes in terms of sustainability (using production of ethanol as an example)
Acids and bases
• Definitions of acid, base, alkali and salt
• Formulae of acids, bases, alkalis and salts
• The relationship between bases and alkalis
• The pH scale
• Everyday examples of acids and bases
• Weak and strong acids
• Diprotic acids
• Writing and balancing neutralization reactions (including acid-carbonate reactions)
• Ionic equations
Acid-base titrations
• Titration and uses
• Standard solution
• Glassware and procedure for titration with detailed hints for technique
• Reading burette
• Recording titration results and calculating the mean
• Titration calculations
• Examples of structured and unstructured calculations
• Revision of calculations involving masses and volumes
• Practical titration activity
• Evaluation of titration experiment
• Uncertainties and calculating % uncertainties
• Procedural errors
Redox
• Redox definition in terms of electron transfer
• Oxidation numbers and how to calculate them
• Oxidation number in chemical names
• Redox definition in terms of oxidation number
• Using oxidation numbers to identify redox reactions and determine what has been oxidised and reduced
• Oxidising and reducing agents
• Disproportionation as oxidation and reduction of the same element
Links
Next bundle:
Electrons and bonding
https://www.tes.com/teaching-resource/electrons-and-bonding-ocr-as-chemistry-12605443
Next topic
Topic 14 – Electron configuration – shells, sub-shells and orbitals
https://www.tes.com/teaching-resource/electron-configuration-shells-sub-shells-and-orbitals-ocr-as-chemistry-12207312
Serving as an introduction to atomic structure, this lesson on the Changing Atom includes all the materials needed for a group activity on the contributions of key scientists to the development of the theory of atomic structure. It features an interactive PowerPoint including starter, group activity, questions and plenary along with a worksheet and a lesson plan.
This is the first lesson in a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.1 Atomic structure and isotopes
Please review!
Content covered
How Science Works - HSW7 - The changing accepted models of atomic structure over time.
The contributions of five scientists to the development of the theory of atomic structure.
Duration : One part lesson (setting up) and one whole lesson (group activity and plenary).
The rest of the part lesson can be spent starting atomic structure (see atomic structure lesson)
Links
Next lesson – Topic 1: Atomic structure
https://www.tes.com/teaching-resource/atomic-structure-ocr-as-chemistry-12182593
Bundle covering the whole of the OCR A level chemistry specification sections 2.1.1 and 2.1.2. (topics 1-4)
https://www.tes.com/teaching-resource/atomic-masses-formulae-and-equations-ocr-as-chemistry-12348685
This bundle is ideal for classroom or home learning and covers the whole of the OCR A level chemistry specification module 2 - Foundations in Chemistry, sections 2.1 and 2.2.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet and a lesson plan. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz. A practical activity on titration is also included.
This bundle relates to the following sections of the OCR AS Chemistry specification:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions (whole)
2.1.1 – Atomic structure and isotopes
2.1.2 – Compounds, formulae and equations
2.1.3 – Amount of substance
2.1.4 – Acids
2.1.5 − Redox
Part 2 – Electrons, bonding and structure (whole)
2.2.1 – Electron structure
2.2.2 – Bonding and structure
Module 3 – The Periodic table and energy
Part 1 –The Periodic Table (part)
3.1.1 (Periodicity) (part)
Content covered:
The changing atom
How Science Works - HSW7 - The changing accepted models of atomic structure over time.
The contributions of five scientists to the development of the theory of atomic structure.
Atomic structure
• Protons, neutrons and electrons – mass and relative charge
• Atomic number and mass number
• Isotopes
• Key definitions
Atomic masses
• Relative masses - comparison of masses to carbon-12
• Calculating relative atomic mass from the masses and abundances of the isotopes
• Mass spectrometry and its use in the above
• Calculating relative molecular and relative formula masses from formulae
• Key definitions of relative atomic mass and relative isotopic mass
Formulae and equations
• Formulae of ions
• Predicting ionic charges from the Periodic Table
• Writing the formulae of ionic compounds and elements
• Writing and balancing equations
• Common types of reaction and their equations
Amount of substance and the mole
• Relative masses and the mole
• Avogadro constant
• Calculating number of atoms
• Amount of substance
• Molar mass
• Calculating amount of substance from total mass and vice versa
• Mole triangle
Determining formulae
• Definitions and use of the terms empirical and molecular formula
• Simplest whole number ratios
• Calculations of empirical and molecular formulae, from composition by mass or percentage compositions by mass and relative molecular mass
• Calculating % by mass from the formula
• The terms anhydrous, hydrated and water of crystallisation
• Calculation of the formula of a hydrated salt from given percentage composition, mass composition or based on experimental results
Moles and gas volumes
• Molar volume of a gas
• Moles and gas volume triangle
• Summary of relationships for gases between amount of substance, volume, mass and number of molecules
• Calculating amount of substance from volume of gas and vice versa
• Ideal gases
• The ideal gas equation
Moles, concentrations and solutions
• Definitions and use of the terms concentration and mass concentration
• Concentrated and dilute
• Relationship between concentration, amount in mol and volume including concentration triangle
• Calculating concentration, amount in mol, volume and mass from given data
• Example calculations
• Mass concentrations
• Choosing the correct glassware to measure volumes
• Standard solutions
• Practical activity – making up a standard solution
• Diluting solutions and calculations
• Practical activity – diluting solutions
Moles and reactions
• Balanced chemical equations and stoichiometry
• Molar ratios
• Using molar ratio to calculate amounts in moles of reactants and products in a chemical reaction
• Using molar ratio to calculate masses of reactants and products in a chemical reaction
• Using molar ratio to calculate volumes of gases in a chemical reaction
• Flow diagrams showing steps in calculations involving quantities of reacting substances
• Example calculations – clearly illustrated in a highly visual way
Percentage yield and atom economy
• Introduction to Green Chemistry
• Reasons why reactions do not have 100% yield
• % yield and how to calculate it
• Calculations of % yield involving limiting reactant
• Atom economy and its importance in the sustainability of a chemical process
• Calculating atom economy
• Example calculations – clearly illustrated in a highly visual way
• Differences between atom economy and % yield
• Comparing chemical processes in terms of sustainability (using production of ethanol as an example)
Acids and bases
• Definitions of acid, base, alkali and salt
• Formulae of acids, bases, alkalis and salts
• The relationship between bases and alkalis
• The pH scale
• Everyday examples of acids and bases
• Weak and strong acids
• Diprotic acids
• Writing and balancing neutralization reactions (including acid-carbonate reactions)
• Ionic equations
Acid-base titrations
• Titration and uses
• Standard solution
• Glassware and procedure for titration with detailed hints for technique
• Reading burette
• Recording titration results and calculating the mean
• Titration calculations
• Examples of structured and unstructured calculations
• Revision of calculations involving masses and volumes
• Practical titration activity
• Evaluation of titration experiment
• Uncertainties and calculating % uncertainties
• Procedural errors
Redox
• Redox definition in terms of electron transfer
• Oxidation numbers and how to calculate them
• Oxidation number in chemical names
• Redox definition in terms of oxidation number
• Using oxidation numbers to identify redox reactions and determine what has been oxidised and reduced
• Oxidising and reducing agents
• Disproportionation as oxidation and reduction of the same element
Electron configuration - shells, sub-shells and orbitals
• Energy levels
• Main shells, sub-shells and orbitals
• Rules for filling orbitals
• Electron configurations of atoms and ions
• Deducing electron configuration using the Periodic Table
• Relationship of electron configuration to the Periodic Table
Ionic bonding
• Bonding and the Periodic Table
• Predicting ionic formulae
• Definition of ionic bonding
• Dot-and-cross diagrams – some of them animated
• Half equations
• Giant ionic lattice
• Physical properties of ionic compounds including:
• melting point
• electrical conductivity
• solubility in polar and non-polar solvents
Covalent bonding
• Definition of a covalent bond
• Single, double and triple covalent bonds
• Lone pairs
• How to construct dot-and-cross diagrams
• Dative covalent or coordinate bonds
• The Octet Rule and exceptions
• Average bond enthalpies
Shapes of molecules and ions
• Electron pair repulsion theory (VSEPR)
• Effect of lone pairs on shape
• Model answer to exam question
• How to draw simple shapes in 3D
• Bond angles
Electronegativity and bond polarity
• Definition of electronegativity
• Atomic core and calculation of core charge
• Factors affecting electronegativity
• Pauling scale of electronegativity
• Electronegativity and bond polarity
• Non-polar and polar covalent bonds
• Electronegativity and bonding type (including intermediate bonding)
• Polarity of molecules from the bond polarities and the molecular shape
• Predicting whether a molecule will have an overall dipole from its symmetry
Intermolecular forces
• What are intermolecular forces?
• Strengths of bonds and intermolecular forces
• Types of intermolecular forces
• Induced dipole-dipole interactions (London (dispersion) forces)
• How London forces arise
• Factors affecting strength of London forces
• Permanent dipole-dipole interactions
• How permanent dipole-dipole interactions arise
• How intermolecular forces affect properties
• Hydrogen bonding
• What’s special about hydrogen bonds
• Effects of hydrogen bonds on properties
• Special properties of water
• Summary of intermolecular forces
• Predicting the type of intermolecular forces
Structure and bonding
• Factors influencing physical properties
• The way the atoms/ions are grouped together (structure)
• The type of particles the solid is built up from
• The bonds or forces holding these particles together
• Structure and physical properties of ionic compounds (see also topic 15)
• Structures and physical properties of covalent substances including giant covalent and simple molecular
• Diamond and graphite – structures and properties
• Graphene
• Metallic bonding, structure and physical properties
• Summary of types of bonding
• Jigsaw discussion to summarise 4 main types of structure and their properties
Links
Next lesson – free resource: Topic 21 – the Periodic Table past and present
http://www.tes.com/teaching-resource/periodic-table-past-and-present-ocr-as-chemistry-12964450
Includes a fully interactive PowerPoint true-false quiz to recap the previous lesson on atomic structure, along with the template for the true-false cards needed in the classroom. This complete lesson on the topic atomic masses and mass spectrometry is ideal for classroom or home study. It features a 30 slide interactive PowerPoint including starter, group activities, questions and plenary along with a 10 page worksheet and a lesson plan. An exam style question is also included. Answers to all exercises are provided.
This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 2 – Foundations in chemistry
Part 1 – Atoms and reactions
2.1.1 Atomic structure and isotopes
Please review!
Content covered
• Relative masses - comparison of masses to carbon-12
• Calculating relative atomic mass from the masses and abundances of the isotopes
• Mass spectrometry and its use in the above
• Calculating relative molecular and relative formula masses from formulae
• Key definitions of relative atomic mass and relative isotopic mass
Duration: one lesson
Links
Previous lesson: Topic 2: Atomic structure
https://www.tes.com/teaching-resource/atomic-structure-ocr-as-chemistry-12182593
Next lesson: Topic 4: Formulae and equations
https://www.tes.com/teaching-resource/formulae-and-equations-ocr-as-chemistry-12186723
Bundle covering the whole of the OCR A level chemistry specification sections 2.1.1 and 2.1.2. (topics 1-4)
https://www.tes.com/teaching-resource/atomic-masses-formulae-and-equations-ocr-as-chemistry-12348685
This bundle is ideal for classroom or home learning and covers the history of the periodic table, the features of the modern periodic table and periodicity, the periodicity of ionisation energies and melting points and the properties of group 2 elements and compounds. It includes all of the OCR A level chemistry specification sections 3.1.1 and 3.1.2.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz.
This bundle is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 3 – The Periodic table and energy
Part 1 –The Periodic Table
3.1.1 Periodicity and 3.1.2 Group 2
Content covered:
Periodic table past and present
• The history of the periodic table, including Newlands’ and Mendeleev’s contributions
• The structure of the modern periodic table – periods, groups and blocks
• Relationship between electron configuration and the periodic table
• Periodicity – the variation in properties when plotted against atomic number
• Periodicity and metallic character
• Metal and non-metals
**Periodicity of ionisation energies and melting points **
• First ionisation energy – definition
• Factors affecting ionisation energies: nuclear charge, atomic radius and shielding
• Explanation of shielding
• Successive ionisation energies
• Predicting group from successive ionisation energies
• Periodicity of first ionisation energies
• Trends across a period and down a group
• Explanations of small decreases from group 2 to group 3 and from group 5 to group 6
• Periodicity of structure of elements: giant metallic, giant covalent and simple molecular structures
• Periodicity of melting points and explanation in terms of structure.
Group 2
• Structure and physical properties of group 2 elements
• Electron configuration and formation of ions
• First ionisation enthalpy and reactivity
• Redox reactions of group 2 metals with oxygen, water and acids
• Properties of group 2 compounds
• Group 2 oxides and hydroxides – reactions with acids
• Group 2 oxides – reaction with water
• Solubility and alkalinity of group 2 hydroxides
• Reactions of group 2 carbonates with acid
• Uses of group 2 compounds
Links
Next lesson: Topic 24 – group 7
https://www.tes.com/teaching-resource/the-halogens-ocr-as-chemistry-13125529
This bundle is ideal for classroom or home learning and covers the history of the periodic table, the features of the modern periodic table, the periodicity of ionisation energies and melting points as well as the properties of group 2 elements and compounds, the halogens and their compounds and qualitative analysis. It includes all of the OCR A level chemistry specification section 3.1.
Each topic includes a fully interactive PowerPoint including starter, group activities, questions and plenary along with a worksheet. Answers to all exercises are provided. Some of the resources include a PowerPoint quiz.
This bundle is part of a series covering the OCR AS Chemistry specification and relates to the following sections:
Module 3 – The Periodic table and energy
Part 1 –The Periodic Table
3.1.1 Periodicity
3.1.2 Group 2
3.1.3 The halogens
3.1.4 Qualitative analysis
Content covered:
Periodic table past and present
• The history of the periodic table, including Newlands’ and Mendeleev’s contributions
• The structure of the modern periodic table – periods, groups and blocks
• Relationship between electron configuration and the periodic table
• Periodicity – the variation in properties when plotted against atomic number
• Periodicity and metallic character
• Metal and non-metals
Periodicity of ionisation energies and melting points
• First ionisation energy – definition
• Factors affecting ionisation energies: nuclear charge, atomic radius and shielding
• Explanation of shielding
• Successive ionisation energies
• Predicting group from successive ionisation energies
• Periodicity of first ionisation energies
• Trends across a period and down a group
• Explanations of small decreases from group 2 to group 3 and from group 5 to group 6
• Periodicity of structure of elements: giant metallic, giant covalent and simple molecular structures
• Periodicity of melting points and explanation in terms of structure.
Group 2
• Structure and physical properties of group 2 elements
• Electron configuration and formation of ions
• First ionisation enthalpy and reactivity
• Redox reactions of group 2 metals with oxygen, water and acids
• Properties of group 2 compounds
• Group 2 oxides and hydroxides – reactions with acids
• Group 2 oxides – reaction with water
• Solubility and alkalinity of group 2 hydroxides
• Reactions of group 2 carbonates with acid
• Uses of group 2 compounds
The halogens
• Structure and physical properties of group 17 elements
• Electron configuration and formation of ions
• Redox reactions of halogens
• Reactivity of halogens
• Displacement reactions
• Disproportionation reactions of the halogens, including production of bleach
• Benefits and hazards of treating drinking water with chlorine
• Precipitation reactions of aqueous halide ions with aqueous silver nitrate
• Use of silver nitrate as a test for aqueous halide ions
Qualitative analysis
• Precipitation and acid-base reactions
• Tests for carbon dioxide and ammonia
• Tests for anions including carbonate, sulfate, chloride, bromide and iodide ions
• Sequence of tests for anions, with reasons
• Analysing mixtures of anions
• Tests for cations – ammonium ion
Links
Next lesson: Topic 25 – enthalpy changes
https://www.tes.com/teaching-resource/enthalpy-changes-ocr-as-chemistry-12509439
Next bundle: Enthalpy changes bundle
https://www.tes.com/teaching-resource/enthalpy-changes-bundle-12608495