It’s STEM Day! Celebrate with these 4 cool records broken by kids

Published: 06 November 2026
split image girl with slime boy with record certificate

Every year on 8 November we celebrate STEM Day!

Do you know what STEM is? 

It stands for Science, Technology, Engineering and Maths (S.T.E.M.). Here at Guinness World Records, we like to mark this special day by remembering some of the cool experiments, fun challenges, and amazing STEM-themed world records broken by kids just like you!

So let’s take a look at our favourite record titles from this year…

max with laptop

Youngest male videogame developer

Max Baker, a young coder and gamer from the UK, decided he wanted to create his own videogame – and he did, when he was just 10 years 357 days old!

He published his five-level platformer, Gravity Parkour 2.0; in the game, players must navigate a red circle across white beams that vary in size, without it falling through the gaps.

Sounds interesting, doesn’t it? You can read Max’s full story here.

girl with stretched slime

Longest distance to stretch home-made slime in 30 seconds

Madison Kralik, a 10-year-old slime lover from the USA, made her own, super-stretchy slime, and managed to break this fun record by stretching it a whopping 34.86 metres (114.37 ft).

That’s longer than a blue whale, the world’s largest animal!

Madison shared her special recipe with us, and you can find it here.

boy inside tower

Tallest toothpick sculpture

Reaching the incredible height of 5.28 m (17.32 ft), this sculpture’s shape was inspired by the Eiffel tower, with a slim body and strong base.

Its creator? Eric Klabel, a teen from the USA who is not only the engineering prodigy behind this project but also used to hold the record for the tallest ice lolly (popsicle) stick structure back in 2020, when he was even younger!

Of course, building something like this was far from easy. You can read about Eric’s record-breaking journey here.

robot arm close up

Smallest robot arm

Last but not least, a 17-year-old student from India also claimed his second record title by creating this tiny robot arm that’s just slightly bigger than a paperclip at 39.25 mm (1.54 in).

Hiten Dharpure simply loves micro-engineering, the building super tiny but useful things. He told us: “I have a personal goal to challenge myself by setting a new global innovation record every year.”

So who knows, maybe he’ll make the list on next year’s STEM Day with a whole new record-breaking creation!

How will YOU celebrate STEM Day?