A dad carries his daugter on his shoulders. She is reaching for a giant balloon and has her face painted.

What’s on today at the Manchester Science Festival: Sunday, 29 October

Take part in a family rave in today’s Big Fish Little Fish event. There’s bubbles, glitter cannons, giant balloons, playdough tables, a colouring in mural, baby chill area and a licensed bar. As part of Manchester’s Halloween in the city festival the event has a theme of ‘spooky science’. Come dressed as your favourite spooky character and experience all the usual fun from Big Fish Little Fish as well as extra activities from the guys at Chester Zoo and live science experiments (The Birdcage, 2pm – 4:30).

Create your own Thermochromatic Badges with artist Laura Pullig. Use thermochromatic ink which changes colour with heat, make a circuit to heat the ink and learn how to make it disappear or show a pattern. You can even add a secret message to your badge will it will only reveal when it gets warm (Talbot Mill, 1pm – 4pm).

Find out all about the brewing process of craft ales from Jon Shackleton and Gideon Foster from Brewshack. Take part in a tasting session of their craft ales, produced in Talbot Mill’s own brewery. The Brewing and Tasting with Brewshack event is one not to be missed (Talbot Mill, 2pm – 3pm)

Spend your Sunday clambering through a suspended structure designed to replicate a spider’s web. The Tape exhibit contains winding cocooning passageways strung above the ground, inspired by spider’s silk. Tape will give you the rare opportunity to experience what life is really like from a spider’s point of view  (Museum of Science and Industry, 10am – 5pm).

Do you know what a particle accelerator and an iceberg lettuce have in common? Find out in today’s Pi: Seeing into the Invisible.  Learn all about amazing science and discover how science is used to determine atomic structure of materials. Hear from specialists at STFC Daresbury Laboratory as they tell you all about how to improve medical diagnosis using infra-red. You will also get the chance to take a virtual tour of the fastest pulsing participle accelerators in the world, VELA (Museum of Science and Industry, 10:30 – 4).

Today is the last chance you have to experience dinosaurs like never before in our Dinosaurs in the Wild exhibit. Using audio-visual effects combined with a dramatic storyline it will allow you to feel as though you have been transported back in time and are walking with the dinosaurs (Event City, 9:30 – 5).

Come along to the final day of the Women of Science exhibit to see the digital photography exhibition telling the stories of the Women in Science, Technology, Engineering and Maths. You will have the opportunity to talk to some of the scientists featured in the exhibit and find out their stories which may help to inspire your own! (The People’s History Museum, 10am – 5pm).

If you haven’t had chance to take part In The Great Energy Escape today is your last chance! See if you can beat the clock and reduce emissions whilst keeping the lights on in this crystal maze meets breakout interactive game! (Manchester Museum, 11am – 4:30).

What can you make with found materials, broken objects, motors, basic electronic components, tools, glue and tape? Come to Play Table with Alex Pearl to find out. You will be able to make a simple machine, the short life of which will be recorded and uploaded to Instagram where it will live forever! (Talbot Mill, 11am – 4pm).

Spend your Sunday night doing something different with A Grand Exposition: After Dark. Today’s event Cabaret Faraday provides a cabaret unlike no other! With a variety of acts from artists including Dr Quack’s Talking Centre, Kino Film Club and SpitDog. The event will also feature a panel discussion on how culture informs technology (Talbot Mill, 7pm – 11pm).

The HackManchester marathon is concluded at the HackManchester Awards Show today. The event will celebrate the work created during the event. Prizes will be awarded for the Best in Show, Best Company, Best University Team. Individual prizes will also be awarded to individual winners from each challenge (Museum of Science and Industry, 6pm – 10pm).

Other events not to be missed today include Sonic Pixels, Quacklab, A Grand Exposition: Sci – Art, Hack Manchester, Reena Saini Kallat, Hip Hop Science Stop Weekender, Robots, Noise and Signal, LEGO space rovers, Verrfast, Sonic Ensemble, Thermochromatic Badges, Brewing and Tasting with Brewshack and Scribble Bots.