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Smithsonian® Magic Rocks Kit

Smithsonian® Magic Rocks Kit - image 1 of 2

About this item


  • Instant Crystal® Growing Kit
  • Create a Brilliant Underwater Garden
  • Rocks Grow to Different Heights up to 4 Inches
  • STEM - Science Technology Engineering and Math
Smithsonian Magic Rocks includes: 0.44 oz. (12.4 g) Metallic Salts, 2 x 4.5 fl oz. (133 ml) Sodium Silicate, 1 space background print, 1 sticker sheet, 1 tank and detailed instructions.
Adult supervision required. Conforms to ASTM D-4236
Ages 10+
Manufactured by NSI International, Inc. New York, NY 10010 © and TM 2017 NSI International, Inc., and NSI Products (HK) Limited.
© 2017 Smithsonian Institution® The Smithsonian name and logo are registered trademarks of the Smithsonian Institution.
Material: Paper, plastic
Includes: Rocks, stickers, instruction guide
Features: Reusable, sand
Suggested Age: 10 Years and Up
Grade Level: 4th Grade
Number of Players: 1 Player
Educational Focus: Math, Science, engineering, technology
Power Source: Non-powered
TCIN: 51308939
UPC: 042409518816
Item Number (DPCI): 086-00-2411
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Guest reviews

overall: 4 out of 5 stars, see all reviews

Most recent reviews

(would not recommend)
1 out of 5 stars
Av 1 month ago
verified purchaser
Did not work well. When you dump out the water all of the thin strands break
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Cool Gift for

(would recommend)
5 out of 5 stars
Blue Hawaii 3 months ago
verified purchaser
Purchased this item as a gift for a friend’s daughter... hoping it worked perfectly and she got some cool rocks... not sure though I will have to find out!
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(would recommend)
5 out of 5 stars
Brooke 7 months ago
verified purchaser
Such a fun gift for my 8 year old
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5 out of 5 stars
Mimi 10 months ago
verified purchaser
I looked all over for this product. And of course Target didn't let me down. Thrilled to find in time for xmas for my grandson. He will be amazed with these majic rocks.
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