National Geographic Gross Science Kit - 45 Gross Science Experiments- Dissect a Brain, Make Slime, Creepy STEM Project for Boys and Girls, Birthday Gifts for Kids 8-12 (Amazon Exclusive)
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Monday, Dec 29
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Features
- SUPER GROSS MEANS SUPER FUN - Science kits are way more fun when the experiments include boiling boogers, creating glowing worms, and making a test tube vomit! Includes everything for 15 super gross experiments, plus an additional 30 using household products.
- EASY-TO-FOLLOW-INSTRUCTIONS - The experiment guide has kid-friendly instructions with illustrations for each step, and fascinating insight into the science at work in each totally gross experiment. This is one unforgettable educational toy!
- EVEN MORE TO EXPLORE - When kids' science gifts offer this much, there's no going wrong! The bonus booklet inside contains 30 easy experiments, all using common household items! It's one of the most exciting science kits for kids around!
- HANDS-ON STEM - While kids are enthralled by all the yucky fun, they'll be learning about polymers, chemical reactions, pH science, and a lot more! This is a hugely entertaining science toy for kids and a fantastic STEM set for boys and girls alike.
- HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!
Product Dimensions: 11.81 x 8.66 x 3.15 inches
Item Weight: 2.14 pounds
Item model number: NGMEGAGRS
Manufacturer recommended age: 8 years and up
Release date: June 16, 2021
Manufacturer: JMW Sales, Inc.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Dec 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Easy to put together experiments. Good variety of materials. Fun, gross, goopy and sticky kit for kids. My son loved it.
Reviewed in the United States on November 12, 2025 by Richard
This kit is amazing for Halloween season! We homeschool and we have been using this as science for a couple of weeks. My kids are 6 and 9 and absolutely love this kit. They will spend an hour just doing one activity and it doesn't require a lot of parental help. The quality is great- everything we need is included and individually packaged and labeled. I got this in sale and it is absolutely worth it.
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Reviewed in the United States on October 27, 2025 by Designing Dancer
Bought as a holiday gift but should provide entertainment.
Reviewed in the United States on December 10, 2025 by Mountainaire
My son got this for his 7th birthday and has had an absolute blast doing the experiments. The quality is nice, it isn't as messy as I thought it would be. The experiments haven't been too challenging and everything functions well. Lots of colorful and gross things to do. I definitely recommend this kit.
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Reviewed in the United States on October 12, 2024 by Megan Sadler
What I liked Tons of activities, kept my kids busy for hours. The “dissect a brain” kit was their favorite. Instructions are clear and easy for kids to follow. What I didn’t like Some experiments are very messy—prepare your table! A few items feel more like toys than real science. My experience My 9-year-old loved making slime and showing it off. It turned into a fun family activity. Final verdict Perfect gift for curious kids who like gross stuff. Just make sure they’re ready for cleanup afterwards.
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Reviewed in the United States on August 20, 2025 by Juan Alberto Quintero
The perfect gift for a budding scientist and enthusiast of the gross. This kit would also be really fun for Halloween pranks!!
Reviewed in the United States on September 21, 2025 by Amazon Customer
Awesome and super gross. Fun and great for spending time with the kids!
Reviewed in the United States on October 13, 2025 by JP
A wonderful, messy, fun learning kit!
Reviewed in the United States on December 1, 2025 by lori j ralph