Everything is made of atoms! Build them from protons, neutrons and electrons, watch the electrons whizz round in shells, and fill your own periodic table. With 3D glasses the atom floats in front of you.
🔬 Experiments
🧪 My periodic table
Build an element correctly to add it. Tap one to read about it.
Do you have 3D glasses? Red-green, red-blue and red-cyan glasses all work.
You can change this any time from the menu.
3D GLASSES
Your glasses
Check the 3D
How deep?
Less depth is easier on the eyes. More depth pops out more.
1. Hide the green bar
Put the glasses on and cover the eye behind the green lens, so you look only through the red lens. Slide left until the green bar disappears.
2. Hide the red bar
Now cover the eye behind the red lens, so you look only through the green lens. Slide left until the red bar disappears.
3D mode is just a fun way to play. If your eyes feel tired, take a break or play without glasses.
HOW TO PLAY
An atom has a nucleus in the middle made of protons (+) and neutrons, and electrons (−) whizzing round it in shells.
The number of protons decides which element it is: 1 proton is hydrogen, 6 is carbon, 8 is oxygen.
A normal atom has as many electrons as protons, so the + and − balance out.
Electrons fill shells from the inside: 2 fit in the first shell, 8 in the second, 8 in the third (that is enough for the first 20 elements).
Build questions: use the + and − buttons, then tap ⚛️ CHECK. Other questions have answer buttons. Drag the atom to turn it.
No mistakes gets ⭐⭐⭐. Every element you build correctly joins your periodic table.
HOW 3D WORKS
Try this: look at your finger with one eye, then the other. It jumps! Your brain uses the jump between your eyes to see depth: stereo vision.
The game draws the atom twice, from two eyes a little apart, in red and in green (or blue). The glasses give each eye its own picture, so electrons come out in front of the nucleus and go round behind it.
Atom fact: real atoms are far too small to see, even with an ordinary microscope. If the nucleus were the size of a pea in the middle of a football stadium, the electrons would be buzzing round the outside seats! Pictures like this one, with shells, are a model that helps us think about them.