Mimi’s Tiny Adventure

Granny has gone missing! She was working in her garage and her latest invention has accidentally shrunk her down to microscopic size. Join Mimi, her family and friends as they meet amazing scientists, explore the world of tiny physics and put together a rescue plan!

Small things really do make a difference. Happening now!

Meet Mimi

Mimi is a girl who has lots of questions about the universe.

She is always asking Why? How? Who? Where? When? Mimi wants to know all about how the world around her works, and even carries a book of all her big questions and the answers she gets from her new scientist friends.

What’s on?

Mimi’s Tiny Adventure, the third in our series featuring Mimi, is a totally free programme for families to enjoy together, taking place all across the UK and Ireland during 2025 and 2026. We have an exhibition in the heart of London, community events, a storybook, interviews with real scientists working on ‘tiny’ physics, and downloadable activities, plus much more.

Continue your tiny adventure

Titans of tiny physics

Meet our heroes working with ‘tiny’ physics, featuring those who build, measure, see and work with tiny things.

Videos: Mimi's big tiny questions

Learn the answers to all sorts of questions with these videos from real scientists working on ‘tiny’ physics.

Mimi’s Tiny Adventure teacher guide

This resource pack contains everything you need to run your own ‘Tiny Adventure’ workshop and to encourage your students to think like a scientist and ask their own big questions about the tiny side of science.

Download the storybook

Mimi’s Tiny Adventure storybook

Read our free illustrated storybook chapter by chapter and explore the amazing real-life titans of tiny physics at the end of the book. It is aimed at young people aged 11 and below and their families. Perfect to read together as a family with 5-7 year olds or for independent readers aged 7-11.

Download the storybook now (PDF, 51MB)

Welsh language edition storybook

Rydyn ni’n gobeithio y byddwch chi a’ch plentyn, eich teulu neu’ch dosbarth yn mwynhau darllen y stori yma gyda’ch gilydd a bod yn rhan o antur ddiweddaraf Mimi.

Download Antur Fechan Fach Mimi now (PDF, 50MB)