The desk of a grown-up who never fell out of love with the physics classroom.
On my desk lives a Newton’s cradle, and next to it sits a glass ball in which purple lightning bolts dance when you touch it. My family thinks I’ve regressed to childhood. But I can simply finally afford what used to sit behind glass on the shelf in the school physics room. Science, no matter how you look at it, is still the best way to understand how the world works, and good experiment kits today cost less than a trip to the movies. Below are ten objects that turn an ordinary desk into a small laboratory.
What Happens Inside a Toy Volcano?
Chemistry that smells like vinegar and childhood.
A classic school trick: baking soda (sodium bicarbonate) plus acetic acid produce sodium acetate, water, and — most importantly — carbon dioxide. It’s the CO₂ that froths the soapy solution and pushes the “lava” outward. The reaction is only slightly exothermic, but it’s spectacular: bubbles, hissing, red dye. Essentially, it’s the same process that makes dough rise — just without the flour and patience. If you add a bit of dish soap, the foam lasts longer — a little life hack for parents. Such experiments for kids are remembered better than any textbook chapter because they engage sight, hearing, and smell all at once.
This Volcano Eruption kit includes everything you need so you don’t have to rummage through the kitchen for ingredients. The 14+ label is more of a legal formality — a younger child can handle vinegar under adult supervision. A great option when you want experiment kits that work “out of the box” rather than turning into a quest for reagents; check the volcano kit contents and grab it for the next rainy evening.
Price: 460 ₽
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Where Do the Lightning Bolts Inside a Glass Ball Come From?
An aquarium where water is replaced by plasma, and the fish don’t mind.
Inside such a ball is a rarefied inert gas (usually a mixture of neon, argon, and xenon) at low pressure. At the center sits an electrode with high voltage and high frequency; it ionizes the gas by stripping electrons from atoms. The result is plasma — that very “fourth state of matter” that makes up stars and neon signs on the streets. When you touch the glass with your finger, your body becomes a more convenient path for the current, and the discharge gathers into a single bright tendril reaching toward your hand. There’s no danger: the current is microscopic, and the glass insulates. But the physics is absolutely real — the same physics that glows in neon lamps and the northern lights.
This model is a Fish Plasma Ball measuring 17.5×14×19 cm: a glass sphere on a stand, with decorative fish arranged around it as if the plasma were their native aquarium. A plasma ball is great because it equally hypnotizes a seven-year-old child and a thirty-seven-year-old colleague. If you want something strange and beautiful at the same time, the fish version looks far more lively than boring transparent spheres.
Price: 2833 ₽
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Why Do You Need a Backlit Globe in the 21st Century?
Earth at 1:40,000,000 scale, batteries not included.
A phone map is flat — and that’s its fundamental flaw. Any projection of a sphere onto a plane distorts either areas, distances, or angles; the famous Mercator projection, for example, inflates Greenland to the size of Africa, even though it’s actually 14 times smaller. A globe is free of these distortions by definition — it honestly replicates the shape of the planet. And backlighting turns a physical map into a political one: during the day you see mountains and ocean trenches, at night — national borders and capitals. A double life in a single object.
This Globen 32 cm interactive globe supports both modes and connects to an app — meaning it works as a school aid, a night light, and a launchpad for “where is that?” conversations. The 32 cm diameter is larger than average, and details are visible without squinting. If your child constantly asks where Madagascar is and why everything is upside down in Australia, a backlit globe like this will answer a good half of those questions.
Price: 3200 ₽
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How Does a Smartphone Microscope Change Your View of a Water Droplet?
Three lenses, one phone, an endless amount of wonder.
An optical microscope works on a pair of lenses: the objective builds a magnified image of the object, and the eyepiece magnifies it again. The total magnification is the product of the two. In this setup, the smartphone replaces the eye: the camera sensor captures the image from the eyepiece, and you see it on your screen and can take a photo immediately. Nothing magical — just a convenient adaptation of a scheme that’s already four hundred years old, dating back to Leeuwenhoek, who spotted “little animals” in a drop of water. Incidentally, that’s exactly how bacteria were discovered: no synchrophasotrons, just lenses and patience.
This kit with a microscope and smartphone holder has three built-in lenses and a 3+ age rating, meaning it’s designed for a first introduction. As a microscope for a child, it’s appealing because it doesn’t require the skill of “looking through a tube with one eye.”
