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Chemistry & Earth Kits · #4 of 7

National Geographic Slime Making Science Kit

by National Geographic · ranked #13 of 50 on Slide & Scope

4.4

Bench sub-scores

Learning4.5
Build4.2
Ease of setup4.1
Value4.3
Recommended Age8+ yearsNumber of Slime BatchesUp to 6 batchesIncluded Components12 pieces (mixing tools, containers, additives)

The National Geographic Slime Making Science Kit is an engaging and educational way to introduce children to basic chemistry principles while having fun creating colorful, textured slime.

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01The verdict

The National Geographic Slime Making Science Kit is an engaging and educational way to introduce children to basic chemistry principles while having fun creating colorful, textured slime. It's well-suited for young learners and makes a great gift for curious minds, though adult supervision is recommended for the messier parts.

02Spec sheet

Recommended Age8+ years
Number of Slime BatchesUp to 6 batches
Included Components12 pieces (mixing tools, containers, additives)
Package Weight1.2 lbs (0.54 kg)
Educational FocusPolymer chemistry & viscosity
CategoryChemistry & Earth Kits
BrandNational Geographic

03Pros & cons

+What we liked

  • Teaches basic chemistry concepts in a fun, hands-on way
  • Comes with enough materials for many slime-making sessions
  • Non-toxic, kid-safe ingredients
  • Easy-to-follow instructions suitable for beginners
  • Great for group activities or classroom demonstrations

−What to know

  • Some slime batches can turn out too sticky if instructions aren't followed exactly
  • Smaller containers may run out quickly with heavy use
  • Glitter and color additives can be messy if not supervised
  • Not all ingredients are refillable once used up

04Key features

  • 01Includes ingredients and tools to create multiple batches of colorful slime
  • 02Educational guide explaining the science of polymers and viscosity
  • 03Includes mixing tools, storage containers, and color/glitter additives
  • 04Kid-friendly measuring cups and mixing sticks for safe, mess-controlled fun
  • 05Recipes for various slime textures: fluffy, glittery, and stretchy

05Full review

The National Geographic Slime Making Science Kit invites young scientists to explore the gooey, stretchy world of polymers through hands-on experimentation rather than passive play. Designed for kids who love getting their hands messy while learning something real, this kit transforms a kitchen table into a functioning laboratory where chemistry concepts like viscosity, elasticity, and molecular bonding come alive. Rather than simply mixing pre-made goo, children measure, combine, and observe how different ratios of ingredients create dramatically different textures, from thick and gel-like to light and fluffy, giving them a genuine sense of how scientific variables affect outcomes.

Inside the box, National Geographic includes everything needed to produce multiple batches of slime in various colors, textures, and finishes, along with glitter, foam beads, and color pigments that let kids customize their creations while still following a structured experimental process. The included instructions go beyond a simple recipe, guiding children through the underlying science of polymer chains and cross-linking reactions so that every squish and stretch becomes a teachable moment. Because the kit is built specifically for younger learners, the materials are formulated to be non-toxic and easy to clean, allowing parents to feel confident letting children explore independently without constant supervision over spills or residue.

As part of the Microscopes & Science Kits category, this slime kit fits perfectly into a broader ecosystem of National Geographic educational tools aimed at nurturing curiosity in STEM subjects from an early age. It's an ideal gift or activity for elementary-aged children, homeschool programs, or rainy-day boredom busters, offering a satisfying blend of sensory play and genuine scientific discovery. Sturdy packaging, clearly labeled components, and a reusable storage container make the kit convenient for repeated use, ensuring that the fun of slime-making doesn't end after the first batch but continues as kids experiment with their own variations long after unboxing.

06Buyer reviews

M
Melissa T.2023-11-12

Great educational fun

My daughter loved learning about polymers while making slime. The kit came with everything we needed and the instructions were clear.

J
James R.2023-09-05

Good but messy

The kit works well, but be prepared for some mess. We had to buy extra containers to store all the slime we made.

P
Priya S.2024-01-18

Perfect for rainy days

Kept my kids entertained for hours. The science explanations were simple enough for them to understand and enjoy.

C
Carlos M.2023-12-02

Excellent value

Lots of slime-making sessions from one kit. My son is now obsessed with learning more about chemistry.

National Geographic Slime Making Science KitCheck price