Designed for girls aged 10-14 years, Eureka Explorers and Charles Sturt University have partnered to create a fun, carnival like day full of interactive learning experiences with industry leaders in STEM.

"There is something for everyone in all four STEM areas. This year we have some new quirky ideas combining concepts together such as engineering and rock bands and chemistry and hairdressing 101," Eureka Explorers managing director, Petriea Skitek said.

"All lots of fun that the girls can deep dive into to practise their skill building abilities and work alongside to develop new friendships. Also they can connect to STEM mentors.

"I have even heard some young girls are getting together with friends for a Girls Day Out in STEM 2020 online house party."

Throughout the day, the girls will have the opportunity to do book signings with authors such as Cristy Burne and her newest STEM book hot off the press, Lisa Harvey-Smith's Astrophysics books and Careers with STEM magazines.

Dr Jenine Beekhuyzen has a wonderful series of STEM books including her latest book for parents: 5 Things You Can Do to Engage Girls in STEM.

Cristy, Lisa and Jenine each have developed a masterclass too in their respective fields.

"I'm a science writer and children's author, and whether I'm writing fiction or non-fiction, I'm focused on inspiring each of us to play an active part in our world. Girls Day Out in STEM does just that, which is why I'm thrilled to be part of it, helping to empower our next generation of science-savvy citizens," Cristy said.

There are activations and competitions such as Code Camp prizes thanks to Westpac and other prizes with Australia Coding Academy, Google, Priceline goodies and more.

There will be a mentoring meet and greet session "STEMinutes" proudly sponsored by Thoughtexchange software.

This year's National Science Week's theme is deep blue. Participants should channel their inner mermaid with an online tutorial of funky hair and makeup makeovers while discovering the latest in cupcake sea-themed decorating.

"We want to capture, celebrate and champion girls' attributes and encourage their feminine innovations. Our future needs woman researchers, innovators and scientists in the STEM space," Ms Skitek said.

The online virtual day is packed with fun from start to finish.

Participants can join for free on Sunday, August 16, 2020 at www.gdostem.com.au