Chemical Equations & Reactions
Writing what happened, and making sure every atom is accounted for.
What this lesson covers
Chemical Equations & Reactions is a 10-part Class 8 Science lesson. Each part makes one point and then hands over to the next, so it can be read in a sitting or picked up again at the part you stopped on. It defines the idea in plain words before using it, works through an example step by step, breaks the topic into its parts and compares them, shows where it is used outside the textbook, names the mistakes that cost marks in an exam, ends with a recap of what to remember.
How it begins
In an equation the reactants go on the left, the products on the right, with an arrow between them. The arrow means "turns into", not "equals". It shows the direction of the change.
The 10 parts
- Reactants and products
- Word equations
- Symbol equations
- Why equations must balance
- How to balance
- Types of reaction
- Exothermic and endothermic
- Where marks go
- What to remember
- Watch one worked through
Practise Chemical Equations & Reactions
Everything on QuizByt for Class 8 Science that goes with this lesson: read it first, then test yourself while it is fresh.
🧠 6 quizzes on Chemical Equations & Reactions (3 easy, 2 medium, 1 hard)
Work up from easy to hard: the hard quiz asks the Class 8 exam-style questions on Chemical Equations & Reactions.
🖨️ Printable worksheet
Chemical Equations & Reactions on paper for Class 8, with room to write the working out. Preview the first page free.
🎮 Games for Class 8 Science
Memory and reasoning games at the right level for Class 8. Passing a quiz on Chemical Equations & Reactions earns the credits that open them.
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