National Geographic Crystal Growing Kit - 3 Vibrant Colored Crystals to Grow with Light-Up Display Stand, Science Toy for Girls and Boys Ages 8-12, Includes 3 Gems, Cool STEM Gift (Amazon Exclusive)

Really cool kit. Did this with my 6 yr old granddaughter, easy to use, results were great.

This was a great and simply fun science gift for my 10 year old grandson.

I bought this as a gift for my nephew's daughter. They had a great time growing the crystals and the end result was Beautiful. It's a great family project. Try it with your kids. It takes time for the crystals to grow but you'll have fun and be so proud in the end. The light up base makes a really nice display.

This is a fun way to teach science with the added bonus of a cute decoration after.

Overall, good kit. Its crystals, you grow them, mission accomplished.Could of things to point out:1) There are three crystal powders. Each one is a different crystal type. They will not look the same by way of color or structure. I know this because I ordered two kits and each of the purples was one type of Crystal. The blues were another type of Crystal and the greens were yet another type of Crystal. This is important because if you're trying to grow an apples to apples comparison with all three crystals, you will not get it. It's not a terrifically bad thing as long as you know this going into it.2) There is only one grow cup. We ended up buying silicone cups of an appropriate size from Amazon so we could grow all three at the same time. We were doing a science fair project for growth. If we couldn't grow them all at the same time, it would have taken us three times as long (a week each). If you're on a time crunch, that's not good. It's not a bad thing since it only shows one cup in the description pictures, but you may not think of the time crunch aspect when you order yours.In conclusion, it does what it says it's gonna do: give you the sets of crystals.

Our six-year-old grandson had fun watching the first crystal growing over the course of a month. Now he can enjoy two more before his illuminated garden is complete. This is an educational activity that is lots of fun, too!Since writing this review, my daughter informed me that the instructions say to boil a little over a cup of water so that you have 6.75 oz. to use, but it also said "fill to the line on the experiment cup"(which ends up being less than 6.75 oz). Therefore, the powder didn't fully dissolve and the crystal did not grow. So, with the second crystal, she filled the experiment cup a little past the line, using the full 6.75 ounces. That worked!

Everything about this is fun to do. EXCEPT, in the instructions it says that you can use a pint glass or a heat proof jar as additional containers to grow crystals. This is true, but just know that if you do that you will NOT be able to remove the crystal from the jar AT ALL!The silicone cup that comes with the kit is great because, it is flexible and you can carefully and EASILY remove the crystal when it is finished growing.Since this kit comes with the material to grow three different crystals, I would suggest purchasing additional silicone cups to use, or just wait and grow them one at a time.If you are going to go the glass jar route, use a glass jar that you can see through completely. So, at the very least you will be able to view the crystals through a clear viewing space.Everything else about this process was fun for my niece and I to do together. We ended up growing them in different areas, one in the dark, one in the light, we made it a fun experiment.We are going to do this again and this time we are going to purchase different size and shaped silicone cups to do our experiments in.

Best home science kit ever.