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LEGO Chain Reactions (Klutz Science/STEM Activity Kit), 9" Length x 1.06" Width x 10" Height

4.5 out of 5 stars 23,099 ratings

$16.30 with 46 percent savings
List Price: $29.99
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Style: Chain Reactions
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Purchase options and add-ons

  • Nappa silver award winner
  • Design and build 10 amazing moving machines - teach your bricks new tricks
  • Comes with 80 page instructions, 33 LEGO pieces, Instructions for 10 modules, 6 plastic balls, string, paper ramps and other components
  • Includes a 80 page instructional book with Klutz Certified crystal clear instructions
  • Includes more than 30 essential LEGO elements
  • Recommended for children ages 8+

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Product information

Product Dimensions 10.04 x 1.69 x 9.13 inches
Item Weight 1 pounds
Country of Origin Korea, Republic of
ASIN 0545703301
Item model number 9780545703307
Manufacturer recommended age 8 - 15 years
Best Sellers Rank #2,415 in Toys & Games (See Top 100 in Toys & Games)
#135 in Toy Building Sets
Customer Reviews
4.5 out of 5 stars 23,099 ratings

4.5 out of 5 stars
Is Discontinued By Manufacturer No
Release date January 1, 2015
Language English
Manufacturer Klutz

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LEGO Chain Reactions (Klutz Science/STEM Activity Kit), 9" Length x 1.06" Width x 10" Height


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Product Description

Product Description

LEGO Chain Reactions is packed full of ideas, instructions, and inspiration for 10 LEGO machines that spin, swing, pivot, roll, lift, and drop. Each machine alone is awesome, but put them together and you get incredible chain reactions. Then, combine the machines in any order you like to create your own chain reactions. Our team of experts worked with educators and 11-year-olds to invent the machines, then wrote a book that teaches the skills (and some of the physics behind the fun) kids need to create their own amazing chain reaction machines.

Our book includes 33 special LEGO elements that combine with basic bricks from your collection to make your machines go. But don’t worry that you won’t have the right bricks; we worked with the folks at LEGO to make sure you’ll need only the most common bricks, and that there are plenty of substitutes. The result is a chain reaction of fun, as one thing leads to another… and another… and another.

Comes with: 78 page book, 33 LEGO elements, 6 LEGO balls, 6 feet of string, 8 paper ramps, 2 paper pop-up signs, 1 paper funnel ramp, 1 paper flag, 1 paper bucket, 1 platform

From the Manufacturer

Fascinate your friends by completing an ordinary task in an extraordinary way. Learn to build 10 LEGO machines that can swing, pivot, roll, lift, and drop. Then connect, rearrange, and experiment with the machines to create a chain reaction. With this book in hand and a handful of basic bricks from your LEGO collection, the only other thing you'll need is a little imagination. Includes 80-page book of instructions, 33 LEGO pieces, instructions for 10 machines, 6 plastic balls, string, paper ramps, and other components.

Important information

Legal Disclaimer

FOR CHILDREN AGE 8 AND UP

Top Brand: Scholastic

Highly Rated
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From the manufacturer

Klutz Logo Header

What is Klutz?

Klutz is a premium brand of book-based activity kits, designed to inspire creativity in every kid. Our unique combination of crystal-clear instructions, custom tools and materials, and hearty helpings of humor is 100% guaranteed to kick-start creativity.

  • Super-clear Instructions
  • Open-ended Creativity
  • Rewarding Reading
  • Skills to Build On
  • Everything You Need

LEGO Chain Reactions

Design and Build Amazon Moving Machines

In a chain reaction, one thing leads to another, which leads to another, which leads to another, which. ..well, you get the idea

With the stuff in this kit and a pile of your own ordinary LEGO bricks, you can build Ten awesome machines that can be combined to make dozens of different chain reactions that use many steps to do. ..a whole lot of nothing (or maybe something vaguely useful).

Your machine could toss a gum wrapper into the trash, amuse your dog, deliver a message ('Oh Yeah!'), ring a bell, and generally make you the envy of the neighborhood.

What You Get

The box attached to this book contains what you need to turn ordinary bricks into amazing chain reaction machines. Including:

- 33 LEGO Elements

- 6 LEGO balls

- 2.2 yds of string.

- 8 paper ramps

- 2 paper pop-up signs

- 1 paper funnel

- 1 paper flag

- 1 paper bucket

- 1 platform

Klutz Lego Chain Reactions

Klutz Crystal Clear Instructions

With 78 pages of detailed instructions with brightly colored images, you will learn to build machines ranging in complexity from easy to advance.

Stuck on a certain step? Throughout the book, you will also find helpful brick substitutions, suggestions how to fix common problems, and explanations on the physics behind each machine.

Meet the Machines

Each machine is specially designed to build upon the skills you've learned throughout the book. Meet our machines!

1. Quintopple: easy

2. Dominoes: easy

3. Seesaw and Ramp: easy

4.Pop-up Flag and Falling Hammer: medium

5. Board Bouncer: medium

6. Slow Spin: easy

7. Elevator Ramps: advanced

8. Pulley and Bucket: medium

9. Funnel Ramp: medium

10. Zigzag Ramp: advanced

What's in the box

  • Boxed
  • Customer reviews

    4.5 out of 5 stars
    23,099 global ratings

    Review this product

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    Customers say

    Customers find the LEGO Chain Reactions kit entertaining, keeping kids engaged for days while teaching basic engineering concepts. The book receives positive feedback for its quality, and customers consider it a great gift for STEM-interested Lego lovers. While the step-by-step instructions are fairly clear, some customers find them difficult to follow, and there are concerns about missing pieces that weren't included. The value for money receives mixed reviews, with some finding it well worth the price while others disagree.

    AI-generated from the text of customer reviews

    314 customers mention "Fun for kids"306 positive8 negative

    Customers find the LEGO Chain Reactions kit fun for kids, keeping them entertained for days and helping them learn while playing.

    "...LEGO Chain Reactions is a highly engaging and educational kit that combines the fun of building with the learning of basic physics principles...." Read more

    "...Reactions kit is a brilliant fusion of engineering principles and creative play, catering to the curious minds of budding engineers and enthusiasts..." Read more

    "...She learned a lot while having fun. The book helps you build Lego machines that move individually and can be connected - hence the "chain reaction"." Read more

    "...Help your kids think outside the box. It is very rewarding and provides something ready-made kits do not: problem-solving and creativity...." Read more

    237 customers mention "Educational value"216 positive21 negative

    Customers appreciate the educational value of the LEGO Chain Reactions kit, which teaches basic engineering concepts and encourages building different ideas, with one customer noting it's a genius way to inspire curiosity and learning.

    "...Experimentation: Users appreciate that the kit promotes experimentation and creativity, allowing children to design their own chain reactions beyond..." Read more

    "The Lego Chain Reactions kit is a brilliant fusion of engineering principles and creative play, catering to the curious minds of budding engineers..." Read more

    "...challenging to make fully, reliably functional and thrilling once they work for that first time. It's all good stuff!" Read more

    "...and provides something ready-made kits do not: problem-solving and creativity. That is what Legos are for after all!" Read more

    215 customers mention "Book quality"215 positive0 negative

    Customers find the book quality excellent, describing it as a great little set with good projects, and one customer specifically mentions enjoying working with the Lego set.

    "...A lot of what you're paying for here is in my opinion is the wow factor of the book and the well thought out concepts...." Read more

    "...This product is a good idea that just needs some adjustments to be a great idea." Read more

    "...The projects are decent, though I can definitely see younger kids needing assistance...." Read more

    "Really cool. Love it. It was super easy to assemble and definitly was worth my money...." Read more

    150 customers mention "Buildability"150 positive0 negative

    Customers appreciate the buildability of the LEGO Chain Reactions kit, with multiple customers noting it's a good book of projects for Legos and offers lots of ideas to create simple machines.

    "LEGO Chain Reactions is a science and engineering kit designed to teach children (and even adults) about the principles of physics through fun, hands..." Read more

    "...the assembly of various moving machines but also introduces fundamental engineering concepts in an accessible manner...." Read more

    "...She learned a lot while having fun. The book helps you build Lego machines that move individually and can be connected - hence the "chain reaction"." Read more

    "...The unique pieces that come with the set and the “technic” pieces (as he refers to them) add movement to his elaborate designs...." Read more

    145 customers mention "Gift value"140 positive5 negative

    Customers find the LEGO Chain Reactions kit to be a great gift, particularly for STEM-interested Lego lovers and educational purposes.

    "Just the right gift for a boy age 10 to expand his on imagination!!" Read more

    "...It's a bit small. But good intro for someone who's just dabbling. Good gift." Read more

    "A gift for my Lego Nuts grandson!" Read more

    "...It is a great gift for a great price. Thank you" Read more

    178 customers mention "Instructions"112 positive66 negative

    Customers have mixed experiences with the instructions: while some find them fairly clear and easy to follow with step-by-step guidance and simple builds, others report difficulty understanding them and assembling the kit.

    "...Encourages Creativity: While the kit includes instructions for 10 specific machines, it also encourages users to invent their own designs..." Read more

    "...is radically different than just sticking prices together and success is not easy considering that the projects are minimalist in the total number..." Read more

    "...What immediately stands out is the meticulous attention to detail in the instruction manual...." Read more

    "...is very rewarding and provides something ready-made kits do not: problem-solving and creativity. That is what Legos are for after all!" Read more

    144 customers mention "Value for money"60 positive84 negative

    Customers have mixed opinions about the value for money of the LEGO Chain Reactions kit, with some finding it well worth the price while others consider it not worth anything.

    "...Total cheap ripoff crap." Read more

    "...but I call it cost effective...." Read more

    "The book is awesome for learning chain reactions. The quality of the book is terrible, the pages starting falling out after looking through it once." Read more

    "...The price was much more affordable than most LEGO sets and this one gave him the ability to build and rebuild lots of ideas and teach him how to..." Read more

    206 customers mention "Missing pieces"40 positive166 negative

    Customers report issues with missing pieces in the LEGO Chain Reactions kit, noting that there aren't many LEGO parts included and several required pieces are not provided.

    "...walked away I think because it looks complicated and the projects contain very few pieces...." Read more

    "...out of an actual ball maze set, because this set is suplimented with pop-out cardboard pieces like a paperdoll type scenario...." Read more

    "...It sure takes a bunch of bricks...." Read more

    "...Key Features Comprehensive Kit: The kit includes 33 LEGO pieces, instructions for 10 different machines, and essential elements like..." Read more

    Very good idea
    3 out of 5 stars
    Very good idea
    Very good idea, of this creation in collaboration of lego and Klutz Science, but I was a little disappointed I imagined a little more on the part of the product perse, the outlay is high by little. however my son has enjoyed it.
    Thank you for your feedback
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    Top reviews from the United States

    • Reviewed in the United States on July 23, 2024
      Style: Chain ReactionsVerified Purchase
      LEGO Chain Reactions is a science and engineering kit designed to teach children (and even adults) about the principles of physics through fun, hands-on activities. The kit encourages users to build 10 different moving machines, each designed to trigger a chain reaction. It's suitable for children aged 8 and up and can be used as an educational tool to foster creativity and problem-solving skills.

      Key Features
      Comprehensive Kit:

      The kit includes 33 LEGO pieces, instructions for 10 different machines, and essential elements like ramps, gears, and string.
      Additional components, such as balls and paper ramps, help in creating more elaborate chain reactions.
      Educational Value:

      Teaches basic physics concepts like cause and effect, momentum, and gravity.
      Encourages critical thinking and problem-solving as children figure out how to connect different machines to create a continuous chain reaction.
      Illustrated Instructions:

      The included book provides clear, step-by-step instructions with colorful illustrations, making it easy for kids to follow along and build the machines.
      Encourages Creativity:

      While the kit includes instructions for 10 specific machines, it also encourages users to invent their own designs, enhancing creativity and innovation.
      Pros
      Engaging and Fun: The interactive nature of building and triggering chain reactions keeps children engaged and entertained.
      Educational: Provides a hands-on learning experience that reinforces STEM concepts.
      Easy to Use: Clear instructions and colorful illustrations make it accessible for children to use independently.
      Expandable: Compatible with other LEGO sets, allowing for more complex and customized creations.
      Cons
      Limited Pieces: The set includes a limited number of LEGO pieces, so additional LEGO sets might be needed for more complex projects.
      Requires Patience: Younger children might need adult assistance, especially when setting up more intricate chain reactions.
      Fragility: Some of the constructed machines can be delicate and may require careful handling to avoid breaking.
      User Experience
      Positive Feedback: Users often praise the kit for its educational value and the fun, interactive learning experience it provides.
      Family Activity: Many families enjoy using the kit together, finding it a great way to bond while learning.
      Encourages Experimentation: Users appreciate that the kit promotes experimentation and creativity, allowing children to design their own chain reactions beyond the provided instructions.
      Conclusion
      LEGO Chain Reactions is a highly engaging and educational kit that combines the fun of building with the learning of basic physics principles. It is ideal for children aged 8 and up, providing an excellent platform for developing problem-solving and critical thinking skills. While the set's limited number of pieces may require supplementation for more elaborate designs, its compatibility with other LEGO sets makes it a versatile addition to any LEGO collection. Overall, it's a valuable tool for both learning and play, fostering creativity and innovation in young minds.
      4 people found this helpful
      Report
    • Reviewed in the United States on February 19, 2024
      Style: Chain ReactionsVerified Purchase
      The Lego Chain Reactions kit is a brilliant fusion of engineering principles and creative play, catering to the curious minds of budding engineers and enthusiasts alike. As someone with an engineer’s mindset, this kit provides a captivating journey into the world of mechanics and kinetic design.

      What immediately stands out is the meticulous attention to detail in the instruction manual. It not only guides users through the assembly of various moving machines but also introduces fundamental engineering concepts in an accessible manner. Each step is a miniature lesson in the mechanics behind the chain reactions, making it an ideal educational tool for understanding cause and effect in a tangible way.

      The modular design of the Lego Chain Reactions components allows for a diverse range of contraptions, sparking the imagination of aspiring engineers to create their own intricate setups. The inclusion of Lego elements seamlessly blends the joy of play with the precision of engineering, promoting hands-on learning through experimentation and iteration.

      From a technical standpoint, the reliability and durability of the Lego pieces ensure smooth operation and easy troubleshooting. This kit not only fosters creativity but also hones problem-solving skills as users analyze and refine their designs to achieve optimal functionality.

      As someone who values the marriage of innovation and play, the Lego Chain Reactions kit is a testament to the power of hands-on engineering education. It instills a sense of accomplishment as intricate systems come to life, making it a must-have for anyone eager to delve into the fascinating intersection of Lego and engineering principles.
    • Reviewed in the United States on June 2, 2024
      Style: Chain ReactionsVerified Purchase
      My granddaughter had this on her Christmas list. She's a HUGE Lego fan so of course, Grandma got it for her for Christmas. She learned a lot while having fun. The book helps you build Lego machines that move individually and can be connected - hence the "chain reaction".
      One person found this helpful
      Report

    Top reviews from other countries

    Translate all reviews to English
    • Marco Pistacchi
      5.0 out of 5 stars I miei figli ne vanno
      Reviewed in Italy on May 3, 2021
      Style: Chain ReactionsVerified Purchase
      Molto divertente
      Report
    • Augustina
      5.0 out of 5 stars my kid loved this!
      Reviewed in Singapore on March 9, 2025
      Style: Chain ReactionsVerified Purchase
      my kid loved it!
    • Mohammed
      3.0 out of 5 stars Not much bricks.
      Reviewed in Saudi Arabia on November 20, 2022
      Style: Chain ReactionsVerified Purchase
      Not much bricks.
    • Crystal Gilbert
      5.0 out of 5 stars Loved by 10 year old
      Reviewed in Canada on February 7, 2025
      Style: Chain ReactionsVerified Purchase
      Purchased for my 10 year old Lego obsessed nephew - he loved it! Gave him a new challenge rather than always building kits.
    • Pialot
      5.0 out of 5 stars Tres bien !
      Reviewed in France on September 6, 2021
      Style: Chain ReactionsVerified Purchase
      Mon fils adore créer des circuits... je recommande