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NESA Accredited Teacher
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High school chemistry & physics specialist 30+ years
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The Crazy Scientist in primary schools — 15 years
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International conference presenter on science education
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Creator of the LAB™ Learning System
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Curriculum aligned: NSW Science & Technology K–6 (2024)
A picture is worth a thousand words — check this out and see if you can spot the science hiding in plain sight.
From the LAB

What you will need
Sodium polyacrylate (instant snow powder)
Water
Food colouring (optional)
Clear cups
Spoon

How to do it
1
Set up your cups
Place small amounts of sodium polyacrylate into separate clear cups.

3
Pour the water
Pour the coloured water into the cups fast. Fast movement helps the snow power mix.

5
Explore the snow

2
Add colour (optional)
Add a few drops of food colouring to water and mix.

4
Watch it grow
Watch as the liquid instantly turns into fluffy snow.
❓Where did all the water go?

Did it work? Share the science! Tag @the_crazy_scientist on Instagram — we love seeing your experiments!
Instant Snow Experiment
Designed by Darin Carr (BSc, DipEd)
NESA Accredited Teacher Chemistry & Physics Specialist
Creator of the LAB™ Learning System
This is one of the most popular experiments in our Crazy Scientist Chemistry Show, where students watch liquids transform instantly into something completely different!

7-12 yrs
Easy
5
min
Stage 2, Stage 3
>
Instant Snow Experiment
The Crazy Scientist LAB Learning System™
Every experiment follows The Crazy Scientist Lab Learning System™ — a simple way to help kids think like real scientists.
We
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LINK to what they already know,
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ACTIVATE curiosity through hands-on discovery
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BUILD understanding that actually sticks.

Have you ever seen a liquid completely disappear and turn into something fluffy and solid? It’s one of the most surprising transformations you’ll see!

As soon as the water touches the powder, it vanishes almost instantly… but it hasn’t gone anywhere.
Something incredible is happening right in front of you.

Sodium polyacrylate — the powder you just used — is inside every nappy/diaper, absorbing liquid and holding it as a gel so babies stay dry.
Farmers in dry countries also mix it into soil to hold water through droughts, slowly releasing it to plant roots. The same material, totally different problems solved.
What other problems could you think of where you'd want a material that absorbs huge amounts of liquid and locks it away as a solid?
"Want the full teacher guide? The Crazy Scientist Lab includes classroom delivery tips, how to manage the WOW moment, differentiation for Stage 2 & 3, — ready to teach tomorrow."
Think Like a Scientist
Scientists don't just do ONE experiment; they change one part of the experiment (independent variable) and then see how it affects another part of the experiment
(dependent variable)
Change ONE variable and test again.
What happens if you change how much water you add?

What happens if the water is a different temperature?
🧪 Try it! Change ONE thing and test again. What did you discover?
Want to go deeper? Tap a section below to explore. ▼
The Science Behind It
You didn't make snow. You made something far more interesting than snow.
That powder is called sodium polyacrylate — a superabsorbent polymer. "Polymer" means it's made of thousands of long, chain-like molecules all tangled together (sound familiar? Try [The Magic Skewer]).
But these chains have a superpower — they're covered in tiny sections that are electrically charged, and they repel each other like magnets facing the wrong way.
The moment water touches them, those chains push apart, creating a massive network of gaps — and water molecules flood in and get trapped. The whole thing expands almost instantly into that fluffy, white, snow-like material. The chains grabbed hundreds of times their own weight in water in seconds.
Did you notice it doesn't feel wet? All that water is locked inside the polymer network, held so tightly it can't escape onto your hands.
Did you also notice it feels slightly cold? The polymer spreading and absorbing energy actually pulls a tiny amount of heat away — you felt a chemical reaction happening in your palm.
In [Glow Stick Science], a chemical reaction does the opposite — it releases energy outward as light instead of absorbing it.
Here's the wild part — this exact material is inside every single baby nappy ever made. That's how a nappy holds so much without leaking. You've been wearing polymer science since you were born.
But can you reverse it? Can you turn that snow back into powder? The answer involves another science trick entirely.
Find out in The Crazy Scientist Lab!
Extension: G&T Years 5 & 6
Vocabulary
Know a parent or teacher who'd love this? Send it on! 👇

The Crazy Scientist books

These highly visual books combine storytelling and real science, helping students revisit key concepts and stay engaged long after the session.
Designed by a practising NSW classroom teacher (30+ years experience), these books directly support NSW Science & Technology (2024) outcomes and reinforce “Working Scientifically” skills.
Perfect for classroom libraries or home explorations.

For teachers (YouTube)
— Science Before the Bell
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Quick, curriculum-linked science you can teach tomorro

Try Another Crazy Experiment
Keep the science going with these fun experiments
Let's Go!
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Hands-On Science Workshops
Interactive STEM experiences aligned to the NSW syllabus.






