The following techniques make use of ingredients available in all grocery stores, are quick and easy to put together and produce fast results, at least fast as far as growing crystals is concerned. The key is to look at the sharp corners of the crystal in question. As the crystals form, they go from a random liquid, with energy stored in the motions of the molecules, to a rigid crystal with almost no molecular motion and therefore less energy. I tried this and it didn't work.
When the molecules of the to-be crystals called solute are bumping around each other in a liquid called solvent they like to stick together. There are other forces in the solution that cause them to pull back apart but once in a while you get two molecules that hang on just long enough to attract another molecule and then another and another until a crystal structure starts to form. The more solute in the solvent the faster your crystal will come together.
This process of building crystals is called n ucleation. There are so many crystals to explore, play with and create. Here are just two types of crystals to whet your appetite, but know there are many many more out there waiting for you to discover them! Crystal Needles are a great introduction to crystal growing.
You can have some delicate, really cool crystals going within three hours time! You may know Sugar Crystals by their other name, rock candy , or perhaps by their most common adjective, delicious! These take a little longer than the Needle Crystals to build, but they are easy enough to do and their taste is well worth the wait!
The Sugar Crystals Take Form! If you're hoping to incorporate crystals into your next science fair project think about building a few different types of crystals and comparing their rate of growth , size , color , taste when appropriate and how long they last.
You can discuss, like we did above, how crystals form and why. You could even try testing different materials to see if they will form crystal structures! Sugar forms crystals, does brown sugar form Crystals? How do they compare? It can easily splash onto your hands and arms, causing burns. Use a spoon to stir the solution until all of the crystals are dissolved. Touch the sides of the container every few minutes to check that the water is getting cooler. Add 40 drops of food coloring if you want colored crystals.
Only add 1 color at a time to the crystals to prevent them from becoming a muddy brown color as they grow. Submerge an eggshell in the solution with the open side facing up. Put on a pair of latex or rubber gloves and carefully lower one of the shells into the water. Adjust it with your hands so that the open part is facing the top of the water as much as possible.
If you reach into the water without gloves on, you can stain your hands due to the alum and food coloring. Leave the shell in the container overnight to grow before removing it.
Try not to move the containers while the crystals grow, as this can cause the egg to shift. The eggshell should be able to rest at the bottom of the container with the inside facing up. The crystal will grow based on the shape you submerge in the jar. If you want a crystal with pronounced spikes, you could take a single pipe cleaner and twist smaller lengths of pipe cleaner onto so that they're sticking straight out, perpendicular to the longer piece.
Not Helpful 0 Helpful 0. You want there to be more solid particles than the water can dissolve, so that the crystals can form. Not Helpful 0 Helpful Wurtzite boron nitride and lonsdaleite hexagonal diamond are the two strongest.
Not Helpful 2 Helpful Put a crystal in a solution, allowing other crystals to grow on the original one. You mix salt into a container of water, bit by bit, until the salt stops being able to dissolve.
Then you usually pour it onto a flatter surface like a plate to dry faster. Let it sit for a while and crystals will form.
Not Helpful 5 Helpful The molecules of the chemical salt, sugar, calcium carbonate fit together as they leave the solution and join earlier molecules. The solvent water, oil, alcohol, etc. If you add more, it becomes supersaturated and the excess starts piling up on the substrate the string, rock, or small crystal of the same chemical.
Not Helpful 6 Helpful Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools. If it cools slowly, then the crystals may form. Not Helpful 3 Helpful 8. Not Helpful 5 Helpful 9. What happens if two different salts are used together?
Answer this question Flag as Can you put charcoal in the salt and water mixture? Include your email address to get a message when this question is answered. Already answered Not a question Bad question Other. Quick Summary To grow crystals, boil water and pour it into a glass jar.
Detailed instructions with pictures on how to grow dozens of different types of crystals Fast, simple crystal growing projects A salt garden (Good for classroom demonstrations.) The simplest, fastest crystals of all to grow (Good for classroom demonstrations.) Super-fast crystals (At last that's what one site claimed. To grow a single large crystal, set a bit of solution on a shallow saucer and let it evaporate to form seed crystals. Select one or a few to place into your main solution to act as nucleation sites for crystal growth. Crystals come in all different shapes and sizes. The purest and cleanest crystals, however, are usually also the ones that grow to be the largest in size. In this activity you'll compare the size and shape of crystals grown in different temperatures.