Description: Video of growing table salt crystals. Due to the heat of the microscope light, the water evaporates and the crystals grow. The solution sits to the right, air is on the left side of the screen.
Description: Video of growing rochellesalt crystals. Due to evaporation of the water from the solution, the crystlas will grow. Crystals will grow from the bottom of the screen to the top. I used the rochelle salt I made myself for this video.
Description: Images of growing sodium thiosulfite crystals. The sodium thiosulfite has been turned into a supercooled liquid state; it is a liquid beneath its melting point. By introducing a small crystal of it, it will instantaneously crystalize.
Description: Video of growing coppersulfate crystals. Due to the heat of the microscope light, the water evaporates and the crystals will start growing. In the end all the water evaporates.
Description: Images of growing coppersulfate crystals. Coppersulfate crystals lie on the bottom of a glass container, containing a sodiumsilicate solution (waterglasss). Due to a reaction between these two chemicals, stalacmites form under the influence of osmotic presure through the walls of the stalacmites. This is called a 'chemical garden' and because its so nice to watch the 'garden' grow, it is often used as a demonstration experiment. Other salts will also work.
Description: Images of growing sodium thiosulfite crystals. The sodium thiosulfite has been turned into a supercooled liquid state; it is a liquid beneath its melting point. By introducing a small crystal of it, it will instantaneously crystalize. In this case crystalization has already started outside of the screen and needle shaped crystals will start growing towards the center of the screen.
Description: This video shows a piece of aluminium being dissolved in a acidic copper sulfate solution, producing hyrdogen (as the bubbles) and copper (the brown dendrites). Because the copper sulfate solution is placed underneath the cover glass, the copper grows in a flat dendritic form.
Description: This video shows a piece of aluminium being dissolved in a acidic copper sulfate solution, producing hyrdogen (as the bubbles) and copper (the brown dendrites). Because the copper sulfate solution is placed underneath the cover glass, the copper grows in a flat dendritic form.
