skip to main content

Thames & Kosmos Crystal Growing

Thames & Kosmos Crystal Growing
  • Our price: $39.99

In stock
View Similar Products
  • +

Available in select locations. This item typically takes an additional 1-2 days to ship. 

Added to My List as a guest.

Your guest list will be saved temporarily during your shopping session.

Sign in to add items to your saved list(s).

1 item added to your list

Thames & Kosmos Crystal Growing

Oops! Something went wrong and we were unable to process your request. Please try again.

Thames & Kosmos Crystal Growing Description

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.

  • Length: 16.8
  • Height: 11.5
  • Width: 3.2


  • *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

    The product you receive may contain additional details or differ from what is shown on this page, or the product may have additional information revealed by partially peeling back the label. We recommend you reference the complete information included with your product before consumption and do not rely solely on the details shown on this page. For more information, please see our full disclaimer.
    View printable version Print Page

    Holiday Stress Doesn't Skip Over the Kids. Help Them Cope With These Tips.

    ‘Tis the season to be jolly, but the holidays can be a stressful time for individuals of all ages. In fact, according to a 2015 survey conducted by, 43.95% of respondents reported that the holidays were “somewhat stressful” and 18.42% reported that the holidays were “very stressful.” And this assessment was administered well before COVID-19—and all its related concerns—entered the scene!

    A Mom and Two Young Children Bake Holiday Themed Cookies to Represent Stress in Children During the Holidays |

    Stress in Children: Identifying Signs and Symptoms

    Do you suspect that your child may be battling holiday-related anxiety and stress? Following are some signs and symptoms to look for:*

    Helping Kids Manage Common Stressors

    While every child and situation is unique, there are some common stressors that may impact kids during “the most wonderful time of the year.” Here are some tips for helping your child deal with these challenges.*

    Final exams

    Older children typically face final exams right around the holidays. Often, such tests count for a large percentage of their semester grade—a grade that will impact college admission for many. To help ease your child’s test-related pressure:
    • Reinforce healthy dietary and sleep habits before and during test times
    • Help them minimize distractions (e.g., TV, music) while studying
    • Help them mentally rehearse taking an exam and having a successful outcome
    • Help ensure they unwind with periodic study breaks (e.g., taking a short walk, shooting some hoops)
    • Ask what else you can do to help ease their stress (e.g., quizzing them with flashcards)

    Holiday travel

    Kids of all ages may become stressed when traveling, especially during the holidays when the roads and airports can become extra crowded and not everyone is feeling especially merry. Kids may also feel anxious about spending the holidays with new people or in unfamiliar surroundings. To help your child overcome their worry:
    • Outline what to expect. For older children, your description may be brief, while younger kids may require additional details. For instance, you may choose to describe what happens when you get to the airport, provide instructions for boarding the airplane, etc.
    • Make them comfortable. Be sure to pack plenty of snacks and distractions (e.g., tablet loaded with never-before-seen movies, coloring books, etc.). Younger children may also be comforted by a sentimental object, such as a special blanket or stuffed animal.
    • Adhere to a routine (as much as possible). Keeping bedtimes and mealtimes the same as usual can help ease seasonal stress, especially for younger children.

    Celebrating in a new home

    Children who recently moved may feel anxious about celebrating the holidays, especially if they are in a new city or state. Help your child cope with stress by:
    • Adhering to familiar traditions. Try to keep some things the same—you may be in a new house, but you can still build a gingerbread house or binge watch your usual holiday movies!
    • Creating some new traditions. Research upcoming holiday events near your new home and ask your child if there’s anything they have always wanted to do during the holidays. Now may be the perfect time to start!
    • Helping them stay in touch. Help your child connect with friends and family via the telephone or videoconferencing. Catching up with loved ones can definitely help make their spirits bright!

    A change in family dynamics

    Kids may feel increased stress during the holidays if there has been a change in the family structure (e.g., birth or death in family, separation or divorce). You can help alleviate your child’s anxiety by:
    • Encouraging them to discuss their feelings. Listen to their concerns and emphasize that their feelings are valid. Even if you don’t have all the answers, your attention and support can comfort your child.
    • Honoring the deceased. If a parent or close relative has passed on, find a way to honor them during your holiday traditions (e.g., share stories about them, bake their favorite holiday cookie).
    • Surrounding them with love. Invite extended family and friends to celebrate with you. Even though their presence can’t make up for a family member who is missing due to death or divorce, your child may feel less isolated.
    • Involving your ex. If the separation/divorce was amicable, consider involving your ex in the holiday festivities, even if it’s only in a small way. If it was contentious, try to avoid casting your ex in a negative light.
    • Creating some new traditions. Whether you lost or gained a family member (new siblings can cause stress, too!), enlist your child in creating some new holiday traditions. This can serve as a much-needed distraction, and they may even have some fun!
    *If you are concerned about your child’s mental health, please consult a mental health professional.

    Vitacost is not responsible for the content provided in customer ratings and reviews. For more information, visit our Terms of Use.

    Sign Up & Save

    Get exclusive offers, free shipping events, expert health tips & more by signing up for our promotional emails.

    • Instant Online Service
    • 1-800-381-0759

      Monday-Friday 8am-9pm EST

      Saturday: 9:30am-6pm EST

      Sunday: Closed

    Please enter a valid zip code