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9.5
Based on 477 reviews

About product

With 10 different missions laid out and supplies to complete them included, this National Geographic Spy Science Kit allows your child to experience the thrill of spy work. The periscope is perfect for secretly looking around corners, and they can look both forwards and backward at the same time using the reflective spy glasses. The instruction guide lays out the details of each mission and provides a history of spy work. This educational set is a fun and creative way for your kids to develop their organization and observation skills.

Pros

  • Includes invisible ink pen, UV light, and decoder wheel
  • Comes with required batteries
  • Suitable for children eight years old and up
  • Includes a notebook to track mission progress

Customer Reviews

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9.8

About product

The waterproof dual coil of the National Geographic Junior Metal Detector ensures accuracy and can detect metal objects up to six inches deep, while the adjustable sensitivity helps to avoid false positives. Plus, the telescoping arm and padded arm strap are easy to adjust, making it suitable for kids of all sizes. For those looking for an educational as well as entertaining product, the learning guide that comes included will be invaluable. It provides in-depth information about metal detectors, how the coils work to detect metal underground, and other practical knowledge that is essential to any treasure hunting enthusiast.

Pros

  • Educational and encourages interest in STEM
  • Easy to store and take on-the-go
  • Collapsible and weighs less than 1.4 lbs
  • A great gift for both boys and girls

Customer Reviews

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9.8

About product

National Geographic delivers a great toddler activity that encourages imagination, active playtime, and the development of gross motor skills with these colorful stepping stones. The unique foam formula is both durable and flexible, making this a reliable and long-lasting toy. The lightweight stones are soft to the touch and perfect for indoor or outdoor use. Use them to create fun obstacles and encourage your child’s creativity and growth.

Pros

  • Includes 10 brightly colored stones
  • Educational and encourages interest in STEM
  • Improves balance and coordination
  • Awarded the 2019 Toy of the Year Award

Customer Reviews

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Best kids spy kit of 2025

Updated Sep, 2025
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Written by Connor Manion
Connor Manion
Connor Manion
Connor Manion is a University of Florida graduate living in the mountains of Northern Georgia. You can find his work among the pages of the Miami Herald, The Olympian, the Sun Herald, and the Fresno Bee. His writing covers a broad range of interests including health and fitness, home improvement, cooking, and pet care. In addition to writing, Connor tutors middle and high school students in math, English, and Economics.
Updated Sep, 2025
Best Pick
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10/10

Product Details

Best Junior Metal Detector
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9.8/10

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9.4/10

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Buying Guide

When it comes to rock tumbler kits, it can take time to narrow down your choices and determine which one is right for you. This guide highlights what to look for when choosing a rock tumbling for an adult. First, consider the type of rocks you'd like to polish. Different kits may be better suited to different types of rocks, so check the product descriptions and materials to see which type of rocks a kit is capable of polishing. Some rocks are harder than others, and some soft rocks can get broken if the tumbler doesn’t have a gentle setting. Rock tumblers generally have size limits to the rocks they can effectively polish. Larger rocks will require a larger tumbler and more grit, so make sure to check the size of the tumbler and the amount of grit included in the kit. You'll also want to consider the number of steps needed to polish your rocks. Some kits offer two-step tumbling which is easier and takes much less time, while others include up to six steps for a higher-quality finish. If you want to polish rocks to a lustrous shine, kits with more steps and different grains of grit will work better Finally, consider the price of the kit and whether or not it includes all the components you need to get started. Some kits may require you to purchase additional supplies, so make sure to research all of the components before making your purchase.
blue marble national geographic spy science kit
blue marble national geographic spy science kit

Featured Products

Blue Marble National Geographic Spy Science Kit - Kids Spy Activity Set, Complete 10 Secret Missions with Gadgets for Kids and Gear, Detective Kit, Science Kits, Pretend Play, Spy Halloween Costume

blue marble national geographic spy science kit

@blue marble

With 10 different missions laid out and supplies to complete them included, this National Geographic Spy Science Kit allows your child to experience the thrill of spy work. The periscope is perfect for secretly looking around corners, and they can look both forwards and backward at the same time using the reflective spy glasses. The instruction guide lays out the details of each mission and provides a history of spy work. This educational set is a fun and creative way for your kids to develop their organization and observation skills.

Check Price

Product features

  • Includes invisible ink pen, UV light, and decoder wheel
  • Comes with required batteries
  • Suitable for children eight years old and up
  • Includes a notebook to track mission progress

FAQs

Can multiple children participate in each mission?

Absolutely! They can even create their own missions in addition to the provided ones. This is a great way to encourage teamwork and innovative thinking.

How long does each mission take?

The missions vary in time based on the child’s age and experience, along with other factors. Most kids are able to complete each mission independently without too much difficulty.

NATIONAL GEOGRAPHIC Junior Metal Detector - Adjustable Metal Detector for Kids with 7.5" Waterproof Dual Coil, Lightweight Design Great for Treasure Hunting Beginners

national geographic junior metal detector

@blue marble

The waterproof dual coil of the National Geographic Junior Metal Detector ensures accuracy and can detect metal objects up to six inches deep, while the adjustable sensitivity helps to avoid false positives. Plus, the telescoping arm and padded arm strap are easy to adjust, making it suitable for kids of all sizes. For those looking for an educational as well as entertaining product, the learning guide that comes included will be invaluable. It provides in-depth information about metal detectors, how the coils work to detect metal underground, and other practical knowledge that is essential to any treasure hunting enthusiast.

Check Price

Product features

  • Educational and encourages interest in STEM
  • Easy to store and take on-the-go
  • Collapsible and weighs less than 1.4 lbs
  • A great gift for both boys and girls

FAQs

How does it indicate when metal is located?

An LED light will start flashing and the detector will beep once it locates metal. This model can detect up to a depth of 6 inches.

What can interfere with a metal detector?

They can be interfered by machines and devices that emit radio waves, electromagnetic fields, or high vibrations. For the clearest quality, try detecting in an isolated outdoor area.

NATIONAL GEOGRAPHIC Stepping Stones for Kids – 10 Soft Durable, Encourage Toddler Balance & Gross Motor Skills, Indoor & Outdoor Toys, Balance Stones, Obstacle Course (Amazon Exclusive)

national geographic stepping stones

@blue marble

National Geographic delivers a great toddler activity that encourages imagination, active playtime, and the development of gross motor skills with these colorful stepping stones. The unique foam formula is both durable and flexible, making this a reliable and long-lasting toy. The lightweight stones are soft to the touch and perfect for indoor or outdoor use. Use them to create fun obstacles and encourage your child’s creativity and growth.

Check Price

Product features

  • Includes 10 brightly colored stones
  • Educational and encourages interest in STEM
  • Improves balance and coordination
  • Awarded the 2019 Toy of the Year Award

FAQs

How big is each stepping stone?

This set comes with 10 stones that vary in size, though they are all between 6 and 8 inches wide.

What are these stones made out of?

They are crafted from polyurethane foam. This makes them sturdy enough for kids to stand on, but soft enough not to cause injuries.

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