The Gunnedah Town Hall will be full of exciting science experiments that will allow attendees to spin themselves until they're dizzy, compare their reflexes to a Formula 1 driver, and see their fingertips under a microscope.

The science circus' colourful semi-trailer will roll up on Wednesday, October 23 and will be set up in the town hall from 4pm-7pm. It is run by 16 postgraduate students studying a Master of Science Communication (Outreach) at The Australian National University.

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The students tour with the science circus around Australia engaging people with science and technology through visits to communities.

The last time it visited Gunnedah was 2015.

Shell Questacon Science Circus' Isla Nakano said she was hoping the whole community would engage with the event.

"It's really important that everyone gets the opportunity to have the excitement for science and a positive engagement with science and technology," Ms Nakano said.

"Hopefully it will start conversations in the community within families and schools about topics around science and our big aim is to have communities that are better informed and feel more empowered to make decisions that have science at the core of them."

Ms Nakano said the evening event would also feature some shows run by the postgraduate students.

"The aim with a lot of our shows are around using everyday materials and everyday science, and showing everyone that science is everywhere and they interact everyday without potentially knowing they do," she said.

"[For example], the science of bubbles and how they're used by mathematicians to solve really complex maths problems, making slime with everyday material like adding water and cornflour [and] the science of flight by using fun, everyday materials."

Gunnedah Shire Council's manager of communication and cultural services Eliza Gallen said it was "an opportunity for hands-on science and technology experience that is great fun".

"This is a really exciting program for students and means they can learn more about STEM areas with a range of interactive science shows including flying rockets, freezing cold liquid nitrogen and gooey slime," she said.

Those wanting to attend can pay at the door for entry. Adults cost $6, students/concession $5, family $18, and children under 5 and Q Club Members are free.

More information can be found on the event's Facebook page.