Explore the fundamental concepts of chemical reactions through interactive lessons, games, and quizzes designed for Grade 10 CAPS curriculum.
Learn to represent reactions using word equations, chemical formulae, and state symbols.
Master the law of conservation of mass by balancing atoms on both sides of the arrow.
Explore synthesis, decomposition, precipitation, gas-forming, and acid-base reactions.
Study energy changes, gas tests, flame tests, and observable signs of reactions.
Each topic includes clear explanations with examples, interactive games to practice key concepts, quick check quizzes after each section, and full-length quizzes for each difficulty level. All pages are mobile-friendly and work on all devices.
Start with "Writing Chemical Equations" before moving on to balancing equations. This builds a strong foundation.
Gas tests and flame tests are frequently tested in exams. Pay special attention to these topics.
Repeat the interactive games until you can solve problems without hints. Consistent practice is key.
Read a reaction as a story: reactants are the starting substances and products are the new substances formed. Write the word equation first if the symbols feel difficult, then translate the words into formulae and check that the equation is balanced.
When balancing, never change the formula of a substance by altering subscripts. Change only the coefficients in front of substances. Count atoms on both sides after every change, and keep a neat table if the equation has several elements.
Use this Chemical Reactions page to practise turning observations into scientific explanations. Focus on identifying reactants and products, writing equations, balancing atoms correctly, and recognising common reaction patterns.
A good revision habit is to describe the reaction in words first, then write the chemical equation and check whether mass is conserved.
When an equation feels difficult, list each element in a table and count atoms on both sides before changing any coefficients.
This method helps you avoid guessing and makes it easier to find mistakes in your own working.
A useful path from this page is to begin with Back to Chemistry and then continue with Start with Writing Chemical Equations. Do not rush through the links; spend time on the examples and make sure you can explain the main idea without looking at the notes.
Use this page to build scientific concepts, formulas, units, diagrams, investigations, and explanations. Write down key terms, formulas, diagrams, or steps that appear often so that revision becomes active instead of just rereading.
Write the formula first, substitute values carefully, include units, and revise the theory behind each calculation. After each lesson, close the page and try a short self-test from memory before checking your notes again.
Move between notes and practice questions often, because Physical Sciences needs both understanding and calculation fluency. If a topic feels too difficult, return to the previous link, revise the basics, and then try the examples again before using past papers.
