Nanoparticles – GCSE Chemistry Practice Questions Downloads Introduction Nanoparticles are a part of modern science that deals with extremely small materials, only a few nanometres in size, which cannot be seen with a normal microscope. In this blog, we’ll learn what nanoparticles are, how their small size affects their properties, and why they are used…
Simultaneous Equations – GCSE Maths Practice Questions Downloads Introduction Two or more equations are solved together at the same time. A solution of these equation is the value of variables which satisfy both of the equations. Examples: Types of Simultaneous Equations Simultaneous equations can be linear (where variables are raised to the power 1) or…
Compound Measures – GCSE Maths Practice Questions Downloads Introduction When we calculate a quantity using other quantities then it is called a Compound Measure which represents the relationship between these quantities and the units used. The Compound Measures are denoted as Ratio or Rate such as “per” unit (km/h, m/s etc.) These Measures are widely…
Alcohols and Carboxylic Acids – GCSE Chemistry Practice Questions Downloads Introduction Chemistry is the study of substances and their reactions. In this blog, we are studying organic chemistry, which focuses on carbon-based compounds. Two important types are alcohols and carboxylic acids, found in many everyday products. Alcohols are used in fuels, medicines, and sanitizers, while…
Separating and Purifying Substances – GCSE Chemistry Practice Questions Downloads Introduction In chemistry, many materials exist as mixtures. To use them properly, scientists separate and purify them using physical properties such as boiling point, solubility, or particle size. These methods keep the chemical composition the same. Separation helps obtain pure substances and is widely used…
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….
States of Matter – GCSE Chemistry Practice Questions Downloads Introduction Matter is anything that has mass and takes up space. Everything around us — In this topic, you will learn about the three states of matter (solid, liquid, and gas), how they change from one state to another, and the difference between physical and chemical…
Qualitative Analysis – GCSE Chemistry Practice Questions Downloads Introduction Qualitative analysis is used in chemistry to identify unknown ions by observing their specific colours, reactions, or precipitates. Each ion must have a unique test because if two ions gave the same result, it would be impossible to know which one is present. In this blog,…
Hydrocarbons GCSE Chemistry Practice Questions Downloads Introduction In organic chemistry, the study of hydrocarbons is important for understanding all carbon compounds. They show how carbon and hydrogen combine to form the simplest organic structures, which later give rise to complex substances such as alcohols, acids, fuels, medicines, and plastics. In this blog, we’ll study the…
Polymers – GCSE Chemistry Practice Questions Downloads Introduction Polymers are all around us, found in plastic bags, clothes, non-stick pans, and even in our DNA. Many small molecules called monomers join together to form a large molecule known as a polymer. In this blog, we’ll explore how polymers are formed, their main types, common uses,…