Crystal Mermaid Terrarium Kit – Grow Crystals & Light Up STEM Craft for Kids Ages 6+
Crystal Mermaid Terrarium Kit – Grow Crystals & Light Up STEM Craft for Kids Ages 6+
This Creativity for Kids Crystal Mermaid Terrarium Kit combines a crystal-growing science experiment with a DIY arts and crafts project. Kids ages 6 and up can mix hot water with the included crystal powder to grow their own coral in as little as 24 hours, then decorate a light-up terrarium with mermaid stickers, sea shells, sand, a squishy starfish, and a buried treasure. The lid lights up with the press of a button (2 AAA batteries required, not included), and glow-in-the-dark stickers and shells add an extra magical effect. It's a hands-on STEM activity that teaches chemical reactions while encouraging creativity.
What's inside the kit?
The kit contains a clear plastic terrarium with a light-up lid, ready-to-grow crystal powder, a mermaid figure, a squishy starfish, glow-in-the-dark shells and stickers, colorful sand, and a buried treasure piece. All components are non-toxic and designed for safe use under adult supervision.
How fast do the crystals actually grow?
Simply add hot water to the crystal powder to activate the chemical reaction. Visible crystal coral growth begins within 24 hours—a fun quick result that keeps kids engaged.
What are the terrarium dimensions?
The assembled terrarium measures 4.25 inches high by 6.5 inches wide, making it a compact display piece for a nightstand or shelf.
How does the light-up feature work?
Press the top of the terrarium lid to turn on a beam of light that illuminates the underwater scene. The lid also includes glow-in-the-dark stickers that charge during the day and glow at night without batteries for the glow effect.
Is this kit safe for young children?
This product is recommended for ages 6 and up due to small parts and the chemical crystal-growing process. The set contains chemicals that may be harmful if misused; adult supervision is advised. All arts and craft supplies are labeled non-toxic.
| Product | Crystal Mermaid Terrarium Kit |
| Brand | Creativity for Kids |
| Terrarium Size | 4.25"H x 6.5"W |
| Light Features | Press-to-light lid + glow-in-the-dark stickers |
| Battery Requirement | 2 AAA batteries (not included) |
| Crystal Growth Time | As little as 24 hours |
| Age Recommendation | 6 years and up |
| Safety | Non-toxic materials; adult supervision recommended |
Frequently asked questions
Do I need to buy extra supplies?
No—everything except hot water and batteries is included. The kit provides crystal powder, decorations, and the terrarium itself.
How long does the crystal coral last?
The crystals stay intact once grown. They can be kept indefinitely inside the terrarium as part of the display.
Can the light-up lid be replaced if broken?
The product does not specify replacement parts. The entire kit is designed as a single-use craft project.