Conditional Probability – GCSE Maths Practice Questions Downloads Introduction Conditional Probability is the probability of an event occurring given that another event has already occurred. Studying of Conditional Probability is important because it helps us understand how the probability of an event changes when we know that another event has occurred. This concept is essential…
Venn Diagram – GCSE Maths Practice Questions Downloads Introduction A Venn diagram is a simple method to compare and group items using overlapping circles. It is fundamental tool in mathematics, logic, and problem-solving. Venn diagrams make complex data simple by showing it visually. What is Venn Diagram? A Venn diagram is a visual way to…
Types of Substance – GCSE Chemistry Practice Questions Downloads Introduction A Substance is a form of matter that has a constant composition and distinct properties. Substances can exist as pure elements, compounds, or mixtures, and they are classified based on their chemical structure and bonding. Understanding substances helps in: Chemical reactions (how substances interact). Material…
Find The Exact Value of The Trigonometric Function – GCSE Maths Practice Questions Downloads Introduction In GCSE Maths, you’re often asked to find sin, cos, or tan of specific angles without a calculator. These specific values are called exact trigonometric values. Exact trigonometric values refer to the known and precise values of sine, cosine, and…
Extracting Metals – GCSE Chemistry Practice Questions Downloads Introduction Metals are shiny, strong and good conductor of heat and electricity making them useful for tools, wires, and structures. Metals are naturally found in the Earth’s crust combined with other elements in mineral deposits called ores, which are then extracted through mining and refined for use….
Calculations Involving Masses – GCSE Chemistry Practice Questions Downloads Introduction Mass is a fundamental property of matter, representing the amount of material in an object. Calculations involving mass are essential in physics, chemistry, engineering, and everyday applications. These computations often include: Basic Mass Measurements Determining mass using balances or scales, typically in grams (g) or…
Acids – GCSE Chemistry Practice Questions Downloads Introduction What are Acids and Base? ACIDS An Acid is a substance that releases H+ ions in water. Acids usually have sour taste and can turn blue litmus paper into red. Examples: Base A base is a substance that releases OH⁻ (hydroxide) ions in water. Bases usually have…
Radioactivity Dangers and Medicines – GCSE Physics Practice Questions Downloads Introduction Radioactivity means a process in which unstable atom nuclei spontaneously emit energy in order to gain stability. Radiations are primarily of three types – Alpha(α) Radiations, Beta(β) Radiations and Gamma(γ) Radiations. There are many medicinal applications of Radioactivity. Also, the small amount of radiation…
Periodic Table – GCSE Chemistry Practice Questions Downloads Introduction The periodic table is a chart that organizes all known elements in a clear and meaningful way. It helps us understand how elements behave, how they interact, and what properties they share. It helps us understand element properties and how different elements are related to each…
Covalent Bonding – GCSE Chemistry Practice Questions Downloads Introduction Covalent bonding is a type of chemical bond where two atoms share one or more pairs of electrons to achieve stability. This bond typically forms between nonmetal atoms that have similar electronegativities, meaning neither atom can completely transfer electrons to the other (as in ionic bonding….