Clever!

Elements 4D is such a clever app! You download the app, print the little boxes ( these are not yet made up) point the phone / tablet at the box on an element of your choice and it will come up as a 3D box, showing the element inside... Better still if you put 2 blocks together say Oxygen and Hydrogen it will show the reaction, give the equation for the reaction and show the product in this case Water!
I love things like this and as a child dreamed of such interactive fun! This shot shows why happens if you point the device at Chlorine, a box of lovely green gas Especially interesting as I have been making it for real today :-)