# Bubble Sort KS3 Resources

## Teach KS3 Students About Bubble Sort, Save Hours of Prep!

Do you want to save hours of lesson preparation time? Get your evenings and weekends back and focus your time where it's needed! Be fully prepared with presentations, notes, activities, and more.

All Computer Science topics are covered, and each module comes complete with:

• Classroom Presentations
• Revision Notes
• Activities & Quizzes
• Mind Maps, Flashcards & Glossaries

#### What is bubble sort?

Bubble sort is a simple sorting algorithm that repeatedly steps through the list to be sorted, compares each pair of adjacent items and swaps them if they are in the wrong order.

#### How does bubble sort work?

Bubble sort compares each pair of adjacent items in a list, and if the items are in the wrong order, it swaps them. This process is repeated until the list is sorted. The largest element "bubbles up" to the last position of the list during each pass.

#### What is the time complexity of bubble sort?

The time complexity of bubble sort is O(n^2) in the worst and average case, and O(n) in the best case (when the list is already sorted).

Advantages: Bubble sort is simple to understand and implement, and it requires a small amount of memory. Disadvantages: bubble sort has a high time complexity in the worst and average case, making it inefficient for large data sets.

#### When would you use bubble sort?

Bubble sort is not commonly used in practice because of its poor performance on large data sets. However, it can be useful in situations where the data set is small and the goal is to teach basic sorting concepts.