KS3 Science Timeline Sort Challenge | Ice Breaker Activity

Get your KS3 students engaged from the very first lesson with this interactive timeline challenge! In this fun back-to-school activity, students work in teams to sort 24 major scientific discoveries and inventions onto a class timeline. With only space for 18 discoveries, students must debate, justify, and choose which scientific milestones deserve a place on the final display.

This activity encourages critical thinking, discussion, and collaboration, making it a perfect KS3 science icebreaker or literacy-based enrichment task.

What’s Included:

• 24 Printable Timeline Event Cards (scientific discoveries & inventions)
• 2 Timeline Templates (landscape & portrait options)
• Printable A3 and A2 display versions
• Student Worksheet for recording choices and justifications
• Teacher Instructions with setup guidance and discussion ideas

Why Teachers Love This Resource
Low prep – just print and go!
Flexible use – as a back-to-school activity, revision starter, or literacy focus lesson
Encourages oracy – students must explain and justify their choices
Classroom display ready – final timeline can be used as a science wall display
Supports key skills – sequencing, evaluating importance, and critical thinking

Curriculum Links
This activity is ideal for KS3 Science (ages 11–14), supporting:
Working Scientifically – considering the impact of science on society
History of Science – recognising key discoveries and their significance
Literacy Across the Curriculum – reading, discussion, and justification

A fun, engaging way to explore the history of science and get students working together from the very start of term!