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Thames & Kosmos

Thames & Kosmos Crystal Growing Science Kit Grow Over A Dozen Crystals with 15 Experiments, Includes Storage Case & 32 Page Color Laboratory Manual

  • Based on 441 reviews
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Arrives Thursday, Jul 10
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Style: Crystal Growing Original


Features

  • Learn about the structure and geometry of crystals
  • Grow dozens of dazzling crystals
  • Mold fun plaster shapes and use dyes to grow a rainbow of custom colors
  • Over 1 million kits sold world-wide
  • Includes 32-page full-color manual

Description

We absolutely love this crystal growing kit from Thames & Kosmos. The 15 experiments progress from simple to complex, providing the perfect learning experience for new chemists. Grow dozens of dazzling crystals! A full-color, 32-page experiment manual guides your experiments in crystal chemistry. From the Manufacturer Grow dozens of dazzling crystals and conduct 15 illuminating experiments with this classic science kit. Experiment with four chemically different crystals each with different properties, including potassium alum crystals that form regular octahedrons, rapidly growing sodium sulfate crystals, long needle-shaped sodium acetate crystals, and plaster which is made from gypsum crystals. Mold fun plaster shapes, including stars, lightning bolts, dolphins, and pyramids, and grow layers of crystals on them. Use dyes to form colored crystals, and mix the dyes to grow a rainbow of custom colored crystals. Display your crystal creations in a clear treasure chest with a locking lid. Mold your own geode — a hollow rock with crystals growing inside — and create a beautiful crystal cavern inside. Experiment with growing crystals rapidly and slowly, and observe how that affects the crystal structures. See if you can grow one giant crystal, and many small crystals on the surface of a rock. Measure how the crystallization of solids out of a solution, and the dissolution of crystals back into solution, affect the temperature of the solution. Learn about the energy of crystallization. Investigate solutions, crystallization, and the chemistry of crystal growing. Learn about the structures and geometries of different crystal shapes. This kit is thoroughly tested and safe: Over one million units of this kit have sold worldwide. A full-color, 32-page experiment manual guides your experiments in crystal chemistry and Earth science.

UPC: 885889617507 044976593333 885316629240 433599222735 814743010444 792736471567 885300784122 885169930852 885858119032 885842729407 847814010524


Global Trade Identification Number: 47, 44


Brand Name: Thames & Kosmos


Age Range Description: 10+


Educational Objective: STEM


Theme: Love,Rainbow


Item Dimensions: 16.8 x 3.2 x 11.5 inches


Item Weight: 1.27 Kilograms


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 10

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Top Amazon Reviews

    • Time consuming!
Style: Crystal Growing Original
I bought this for my son for Christmas. He loves rocks and gems and I thought "creating" some would definitely be a great idea. What I was not prepared for was the amount of time each experiment took. If you have time (days) to put into this and a child with the patience to go through it, this is worth the purchase! My son and I went through some of the experiments, and he loved every minute of it. The formations it makes are really astounding, and it ends in hours/days of excitement for the child. From day 1, my son was wanting to create, and he and I worked on the things we made together. Again, make sure you have time that you'll be able to set aside if you purchase this for someone. It is worth the time spent. ... show more
Reviewed in the United States on October 18, 2018 by Josiah Botsford
    • Thorough Introduction To Hobby Crystal Growing
Style: Crystal Growing Original
This kit is a very comprehensive introduction to growing crystals. I guided my 9 year old through the series of experiments and she and I learned a lot together. She ended up with a nice selection of crystals to keep and admire. I found some typos that can be pretty confusing but apply common sense and you'll be okay. Like it calls for 10-cm of yarn but the units are wrong and it should have been inches. It calls for a shadow pan but it should have said shallow pan. The methods are designed to use minimal equipment but if you read ahead and understand the point of the experiment you can substitute with better stuff. For example, use a long ice tea spoon to stir the solution instead of the wooden popsicle sticks provided and use a lidded dutch oven with hot water for the slow-cool method rather than wrapping the jar in a towel. You can also make your own plaster forms if you have candy moulds on hand instead of the lightening bolt and dolphin they provided because it's just plaster of paris. You can repeat the methods using other crystals around the house like epsom salt, table salt, and borax. Once you've learned the techniques from the kit you can try your own experiments. ... show more
Reviewed in the United States on January 3, 2017 by Amazon Customer
    • Very nice kit
Style: Crystal Growing Original
I bought this for my daughter and I to do together, which we proceeded to do over the course of about 6 months. All of the experiments are simple and fun. It took us a couple of tries at first to get crystals to form (use distilled water! save yourself the trouble), but once we got the hang of it, it was fun. We ended up with several nice pieces and loads of good memories. If I have any complaints, it's that nothing we made looked quite as nice as the box art, but I guess that's par for the course. It was certainly worth our time and our money, and I would 100% recommend this for kids who like experiments (although you'll almost certainly need to help, esp. at first). Also, this set requires patience, as most of the experiments span several days of prep and crystal formation. I would suggest for ages 8+. ... show more
Reviewed in the United States on January 27, 2020 by Emily Mac
    • Awesome kit for kids!
Style: Crystal Growing Original
Purchased this kit for my 7 year old daughter. So far we have done four of the 15 experiments and my daughter has been able to complete all the experiments with guidance. The kit itself is put together really well and includes everything you need to make your own crystals. The guide book also breaks down each exercise and explains what is going on (at a kids level) and is easy to understand. For the money, this is a great kit and my children love it and the cool crystals that have formed so far ! ... show more
Reviewed in the United States on December 30, 2014 by D. Mcdonald
    • Great set!
Style: Crystal Growing Original
Great set! Many hours of fun for me and my 7 y/o son who absolutely loves it. He is too young to do much of this himself but loves watching me and listening to my explanations of what is happening. You do need to have basic understanding of chemistry to be successful in some of these experiments. Crystal growing is not an exact science. The instruction book that comes with the set is pretty good and we did just fine following it. ... show more
Reviewed in the United States on July 19, 2016 by Amazon Customer
    • Frustrating. So far no good results other than tiny crystals.
Style: Crystal Growing Original
This kit has not had very good outcomes so far. It could be the operator, but my alum packets don't completely dissolve even when measured exactly, the crystals are small, so finding a "large" crystal for one of the experiments is near to impossible. The picture in the directions shows the crystal being at least 6x bigger than our largest. We tried the experiment with our largest seed crystal and I went back to check on it and it had fallen out of the string that it had to be tied on for the project. We started the plaster shaped crystal kit today so we will see how it goes. Hopefully a little more sturdy and I hope the geode works well. Might be worth the kit if we actually end up with something tangible other than frustration. ... show more
Reviewed in the United States on November 8, 2013 by MJ
    • really cool
Style: Crystal Growing Original
fast shipped. it is a really cool project. it does take a few weeks to do any of the experiments and it is a pretty long process that definitely needs adult help but it is so cool to look in the jars after a few days and see the crystal grow. the kids love it. they always ask "can I look at the crystals"?. a really creative gift. ... show more
Reviewed in the United States on September 3, 2013 by foo manchu
    • Pre-Christmas Review - Extra items Needed Listed
Style: Crystal Growing Original
Review Image by April Gant April Gant
Review Image by April Gant April Gant
This is a Pre-Christmas review designed to show the quality of packaging, whether the items come complete and undamaged and what, if any, extra items might be needed for it to function. After Christmas I'll update this review with more details and photos in use. This came pretty well packaged and in good condition with no missing items. You will need quite a few extra items to do some of the experiments. Most are easy to find but I still deducted a star since it's a large amount. Extra Items Needed: Distilled Water Adhesive Labels, Pencil, Transparent Tape Thermometer Paper Towels, Pot Holders, Old Cooking Pot Electric Hot Plate or Stove Some Empty Jelly or Honey Jars With Lids Yarn or Nylon String Scissors, Old Newspapers Empty Yogurt Containers Small Pebbles Sandpaper, Cloth Handkerchief Knife, Rubber Band ... show more
Reviewed in the United States on December 14, 2015 by April Gant April Gant

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