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Video:3 Tips for Growing Sugar Crystals

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Grow your own sugar crystals at home with this easy DIY chemistry experiment that's perfect for kids. Gather the few, simple ingredients and start experimenting today.See Transcript

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Transcript:3 Tips for Growing Sugar Crystals

Hi, growing sugar crystals is a fun experiment, but it can be tough, so here are some tips to make sure your sugar crystals grow nice and big.

A Simple Recipe

As with any crystal growing project, it is important to make sure your solution is at adequate saturation levels.

A good recipe for a crystal-growing solution is three parts sugar and 1 part water. Mix the two together in a pan and set it over medium to medium high heat. Stir continuously until the sugar visibly dissolves, then bring the solution to a boil and remove it from the stove top. Your solution should be clear and slightly viscous.

Cool Down Slowly

The best and fastest growing sugar crystals can be achieved if the solution cools down very slowly. To slow down the cooling, choose a tall, narrow container. Rinse it under hot tap water to prevent the glass from cracking due to the difference in temperature.

Use clothes pins or a bag clip to suspend a long wooden dowel inside the container. Then, place the container into a large pan filled with nearly boiling water and let the whole thing cool gradually to room temperature.

Once your solution is cool, you may even move it into the refrigerator to further help crystallization. Just remember not to shake and disturb the solution as you're moving it around.

Common Trouble Spots

One common problem that may undermine the quality of your crystal is that crystallization may happen not just on the wooden dowel where you want it, but also on the walls of the container and the surface of the solution. Check on your solution regularly and remove the unwanted crystals, as they compete with your main crystal.

If crystallization is too heavy, pour the solution into a fresh, clean container, and move your dowel to that container. Follow these tips, and you'll be growing beautiful, edible sugar crystals in no time.

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