We’ve put together 7 scintillating science experiments for National Science Week 2026. Each one features an instruction sheet, along with a video from our friends at Questacon showing how you can do these experiments at home. Remember to tag #ScienceWeek if you share photos or videos of you doing these experiments online!
DIY Science – National Science Week
Ninja Ruler Snap
Use the power of air – and dramatic ninja skills – to snap a ruler in half
DIY Science Activity Ninja Ruler Snap Instructions 2026
DIY Science Ninja Ruler Snap Video
Invisible Fire Extinguisher
The most creative way to extinguish birthday candles
DIY Science Invisible Fire Extinguisher Instructions 2026
DIY Science Invisible Fire Extinguisher Video
Red Cabbage Indicator
Use cabbage to create colourful solutions
DIY Science Red Cabbage Indicator Instructions 2026
DIY Science Red Cabbage Indicator Video
Egg in a Bottle
Use air pressure to push an egg into a bottle, no fingers required
DIY Science Egg in a Bottle Instructions 2026
DIY Science Egg in a Bottle Video
Rainbow Skittles
Explore diffusion in this sweeeeeet experiment
DIY Science Rainbow Skittles Instructions 2026
DIY Science Rainbow Skittles Video
Shouting Bowl
Use the power of sound – and your best operatic voice – to make salt dance
DIY Science Activity Shouting Bowl Instructions
DIY Science Shouting Bowl Video
Upside-down Water
See surprising effects of air pressure and surface tension… and hopefully don’t get wet