According to the packaging warnings, yes, it is. However, the most basic care and attention can avoid any issues. Example, do not consume the chemicals with clear labels of their toxicity. You basically grow the crystal then put it in a display case. It is not for handling. I am not the most careful individual in the world and I did not perish using the product. My cat was smart enough not to consume the product as well. However, if someone were to get ill from the product, I think that would be considered natural selection more than anything.

4M Crystal Growing Experimental Kit – STEM Science Kit for Kids Ages 10+ | Grow 7 Sparkling Crystals in Different Shapes & Colors | Educational Chemistry Lab Activity for Home or School | 00-03272

4M Crystal Growing Experimental Kit – STEM Science Kit for Kids Ages 10+ | Grow 7 Sparkling Crystals in Different Shapes & Colors | Educational Chemistry Lab Activity for Home or School | 00-03272

Q: Can these be displayed for years or are they disposable in a few days?

For years. YEARS. It's been at least five years since I've last made these and their all missing their broken display cases but they just sit on my shelf. They are all perfectly fine, aside from maybe being pretty dusty.

Q: About how long does a experiment take?

It takes about 45 min to set up including boiling some water and letting it cool. The directions are very good. Once set-up is complete it could take up to 7-days for crystals to grow but I saw results overnight. Hope this helps.

Q: How big does this get and do you only get to grow 1 crystal?

One crystal cluster, about 2-3/4" wide (3" dia. container), about 2" high. Ours is a white crystal. My 8 year old enjoys shining a flashlight under and behind it to see the light effects.

Product ID: 263667378

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Details

Size
Growing
Brand
4M
Theme
geology
Age range (description)
10
Item dimensions L x W x H
21.6 x 24.1 x

🌈6+ vibrant colors

📏21.6x24.1x8.3 cm kit size

🔬7 real crystals grown

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Description

💎 Sparkle smarter: Grow brilliance, color, and curiosity at home!

STEM MASTERY AT HOME - Boost scientific thinking and patience with a hands-on chemistry lab designed for young innovators.
CRYSTALIZE YOUR CURIOSITY - Grow 7 dazzling crystals in unique shapes and colors, turning science into a visual spectacle.
ALL INCLUSIVE DISCOVERY KIT - Everything you need—compounds, containers, tools, and display domes—just add water and wonder.
VIBRANT SPECTRUM OF SCIENCE - Experiment with 6+ vivid crystal colors to see chemistry come alive in your own hands.
PERFECT GIFT FOR FUTURE SCIENTISTS - Inspire the next generation with a captivating educational experience that stands out at any science fair or birthday.

The 4M Crystal Growing Experimental Kit empowers kids 10+ to grow 7 real, colorful crystals through hands-on STEM experiments. This all-in-one kit includes crystal compounds, containers, and display domes, providing a vibrant, educational chemistry experience that fosters scientific curiosity and independent learning.

Specifications

Product Dimensions	21.59 x 24.13 x 8.26 cm; 476.27 g
Manufacturer recommended age	10 years and up
Item model number	5557
Educational Objective(s)	STEM
Language:	English
Number of Puzzle Pieces	1
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
Remote Control Included?	No
Color	Basic pack
ASIN	B00ITX1K4K