Where Variables Live
Part of Variable Scope · GCSE GCSE Computer Science revision
This introduction covers Where Variables Live within Variable Scope for GCSE Computer Science. Revise Variable Scope in 3.2 Programming for GCSE Computer Science with 18 exam-style questions and 10 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 2 of 7 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 7
Practice
18 questions
Recall
10 flashcards
Where Variables Live
Scope is where a variable can be seen and used. A local variable is like your bedroom - only you can access it, and when you leave, it's cleaned up. A global variable is like the living room - everyone in the house can use it, and it's always there. Local variables exist only inside their function. Global variables exist everywhere. Generally, prefer local - it's tidier and safer!
Keep building this topic
Read this section alongside the surrounding pages in Variable Scope. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Variable Scope
Where can a local variable be accessed?
Identify and explain the scope error in this pseudocode: function calculateTotal(price, quantity) local total = price * quantity endfunction calculateTotal(10, 5) output total
Quick Recall Flashcards
18 questions on Variable Scope — practise free
Instant marking, adaptive difficulty, and 10 spaced repetition flashcards. Free until your GCSEs.
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