The resource is a practice worksheet to check students understanding of the mole calculations involving calculations related to molar mass, molar volumes, limiting reagent on IGCSE chemistry pattern

The worksheet can be used to test understanding of basic concepts of chemical bonding such as- -Electronic configuration of elements. - Writing formula of ionic and covalent compounds. - Drawing lewis structures of ionic and covalent compounds (examples explained). - Properties of ionic and covalent compounds

This worksheet for checking understanding of core concepts such as acid base nature, strong and weak acid, pH and tests for acid and base.

IGCSE/ GCSE /OCR Biology – Photosynthesis Practice Sheet Exam Style Questions and Marking Scheme Contents Photosynthesis Factors affecting photosynthesis Experiments to prove CO2 is given out Experiments to prove O2 is taken in Palisade cell Chloroplast Chlorophyll Equation of Photosynthesis Testing of Starch in Leaf

This is an excellent resource for teaching IB and A level Class about periodic table and periodic properties. Contents- • The periodic table is arranged into four blocks associated with the four sub-levels—s, p, d, and f. • The periodic table consists of groups (vertical columns) and periods (horizontal rows). • The period number (n) is the outer energy level that is occupied by electrons. • The number of the principal energy level and the number of the valence electrons in an atom can be deduced from its position on the periodic table. • The periodic table shows the positions of metals, non-metals and metalloids. • Deduction of the electron configuration of an atom from the element’s position on the periodic table, and vice versa. Transition elements have variable oxidation states, form complex ions with ligands, have coloured compounds, and display catalytic and magnetic properties. • Zn is not considered to be a transition element as it does not form ions with incomplete d-orbitals. • Transition elements show an oxidation state of +2 when the s-electrons are removed. • Explanation of the ability of transition metals to form variable oxidation states from successive ionization energies. • Explanation of the nature of the coordinate bond within a complex ion. • Deduction of the total charge given the formula of the ion and ligands present. • Explanation of the magnetic properties in transition metals in terms of unpaired electrons.

This document contains lecture notes on Particulate nature of matter that can be used by teachers as lesson content for complete delivery of the chapter. Students can also use the resource for self learning the concepts such as conversion of states, kinetic particle theory, heating and cooling curve etc. At the end document also contains past exam paper questions from the chapter that have been asked in CIE exam. These questions can be given as worksheet for pracitsing the application of concepts from this chapter. All lecture content is copyright of the uploader. Topics covered- Topics Covered- • Matter • 5 States of Matter • Existence of Common states • Arrangement in Solids liquids and gases • Kinetic Particle Theory • Diffusion • Change of States • Heating Curve • Cooling Curve • Past Exam Questions for practice

Thermal Physics /Heat - IGCSE Physics Complete Lesson Thermal properties and Temperature Thermal expansion of solids, liquids, and gases at constant pressure Applications and consequences of thermal expansion Measurement of temperature How a physical property that varies with temperature may be used for the measurement of temperature, and state examples of such properties Need for and identify fixed points Structure and action of Liquid-in-glass thermometers Sensitivity,range and linearity of thermometer Structure of a thermocouple and show understanding of its use as a thermometer for measuring high temperatures and those that vary rapidly Structure of a liquid-in-glass thermometer relates to its sensitivity,range and linearity Thermal capacity (heat capacity) Rise in the temperature of a body to an increase in its internal energy Equation thermal capacity = mc Define specific heat capacity Equation change in energy = mc∆T Experiment to measure the specific heat capacity of a substance Melting and boiling in terms of energy input without a change in temperature Distinguish between boiling and evaporation

This resource I use to teach my IB and A Level Students about moles and stoichiometric relationships. Contents- States of Matter Laws of Chemical Combination Naming of Ionic and Covalent Compounds Valencies of common ions Mole Concept • The mole is a fixed number of particles and refers to the amount, n, of substance. • Masses of atoms are compared on a scale relative to 12C and are expressed as relative atomic mass (Ar) and relative formula/molecular mass (Mr). • Molar mass (M) has the units g mol-1. • The empirical formula and molecular formula of a compound give the simplest ratio and the actual number of atoms present in a molecule respectively. • Calculation of the molar masses of atoms, ions, molecules and formula units. • Solution of problems involving the relationships between the number of particles, the amount of substance in moles and the mass in grams. • Interconversion of the percentage composition by mass and the empirical formula. • Determination of the molecular formula of a compound from its empirical formula and molar mass. • Obtaining and using experimental data for deriving empirical formulas from reactions involving mass changes.

This is an excellent resource I have created for students and teachers to understand various concepts of Mole calculations with solved examples. Contents- Elements Compounds Chemical Formula Word Equation Symbol Equation Balancing Equation Relative Atomic Mass Naming Compound Information from a chemical equation Definition of Mole The mole concept Molar Mass Important Formulae Limiting reagent Reacting Masses Reacting masses and ratios Molar Volumes Concentration of Solutions Water of Crystallisation Empirical and Molecular Formula Percentage Yield Percentage Purity Solved Examples of all the concepts

Revision Test -IGCSE Physics -Light Time-1.5 Hrs Section -A MCQ’s and Section B- Structured response questions Topics Tested -Light and speed of light - Reflection, Image formation by mirror -Refraction, Image formation by lenses -Dispersion -Solar energy

 IGCSE General Physics -Measurements Revision test. Time- 1 Hr Apparatus, Clocks  Measuring Cylinders  Errors,  Screw gauge,  measuring,  reading length mass and time  calculation and graphs volume and density

IB/ AS level / Edexcel K12- Chemistry Chemical Kinetics Worksheet Questions and Marking scheme MCQ’s and Theory Questions Contents- • Activation Energy • Rate • Rate Expression • Rate Law • Integrated Rate Law • Arrhenius Equation • In K vs T • Maxwell Boltzmann Energy Distribution • Activation Energy • Order of a Reaction • Reaction Mechanisms

This is an excerpt from IGCSE Conceptual Chemistry by Husain Pipliyawala Contents 1. The Periodic Table 2. Periodic trends 3. Group 4. Periods 5. Group –I 6. Group-II 7. Group –VII 8. Transition elements 9. Noble gases 10. Exam Style Questions Ans Key Document

The Practice test paper has past exam questions and new exam style questions in two sections (MCQ and Structured) on - Mole calculation -Limiting-reagent -% yield -% purity -Empirical-and-molecular Formula calculation Time limit- 1Hr 15 min ________Marks-80

The worksheet can be used to test understanding of IGCSE concepts of periodic properties such as- -Arrangement of elements in periodic table - Groups and periods in periodic table -Properties of group I, II, transition metals,halogens and inert gases.

The document clearly explains the concepts of reduction and oxidation of elements in chemical reactions by different examples. Also explains the difference in application of three main concepts of redox. Contents include- -Electron concept of Redox (Example reactions explained) - Oxygen Hydrogen concept of Redox (Examples reactions explained) - Oxidation state concept of Redox (Examples reactions explained)

This test paper contains important exam style questions (MCQ /structured) on two main IGCSE topics - Atomic structure - Mole calculations Time Duration -1 Hr

The document can be used to start IGCSE chemistry lecture on Formula, Equations, Word equation, Symbol Equations and balancing. It can be used by students to self study how balancing of simple and advance equations can be done by following some simple rules. It also explains the importance of writing word and symbol equations and information conveyed by a balanced chemical reaction. Topics Covered • Chemical reaction • Word Equation • Symbol Equation • Balancing Chemical reactions • Simple rules for balancing reactions (anyone can learn how to balance a chemical reaction) • Information conveyed by reactions • Mole and its importance in balancing

The resource contains the important instruments and techniques as per IGCSE chemistry. It clearly explains separation techniques and their uses (commonly asked in IGCSE exams theory and ATP papers) along with other objectives such as measurements and criteria for purity. Topics Covered- • Measurement • Pure Substances • Criteria for Purity • Difference between compounds and mixtures • Homogenous mixtures • Heterogenous mixtures • Separation Techniques • Decantation • Filteration • Sublimation • Chromatography • Distillation • Fractional distillation • Crystallisation • Centrifugation

The resource contains all usefull information for Atomic structure as listed below- Daltons Atomic Theory Structure of Atom Electron Thomson’s Model Proton and Neutron Rutherford’s Model Bohr’s Model Isotopes Radioisotpes Uses of Radio isotopes Electronic Arrangement Rules Proton Number Nucleon Number