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

4.5 4.5 out of 5 stars 22,872 ratings
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Chain Reactions
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About this item

  • 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+
› See more product details

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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

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

Important information

Legal Disclaimer

FOR CHILDREN AGE 8 AND UP

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.

Klutz Lego Chain Reactions

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 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

    • Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    22,872 global ratings

    Customers say

    Customers find the book educational and fun. They say it teaches basic engineering ideas and is an awesome way to teach kids physics. Readers also appreciate the creativity and gift value of the kit. However, some customers have reported that the sleeve content is not enough essential pieces needed to build what's in the book. They also mention that some parts are made of thin paper and too flimsy to actually work reliably. Opinions are mixed on the instructions, with some finding them clear and helpful, while others say they get increasingly larger.

    AI-generated from the text of customer reviews

    Select to learn more
    Educational valueFunCreativityGift valueInstructionsSleeve contentPaper content
    180 customers mention "Educational value"169 positive11 negative

    Customers find the book educational. They say it teaches basic engineering ideas, is an awesome way to teach physics, and has all the great STEM education kids need. Readers also mention it encourages critical thinking and problem-solving as children figure out how to connect different machines. Additionally, they say it renews their interest in boring old bricks and has a great time building the projects.

    "...Encourages critical thinking and problem-solving as children figure out how to connect different machines to create a continuous chain reaction...." Read more

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

    "...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..." Read more

    "...The premise is a good one, and I feel that it teaches some basic engineering ideas (levers, pulleys etc)...." Read more

    168 customers mention "Fun"157 positive11 negative

    Customers find the book fun. They say it's highly engaging, entertaining, and a great activity book for kids who like to be creative and build things. Readers also mention it's a rewarding way to spend hot summer afternoons with their children.

    "...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

    "...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

    "...way to inspire curiosity and learning, proving that science can be both fun and educational. Highly recommended!" Read more

    "I purchased this for my grandson for Christmas. He’s had a wonderful time playing with it. It reminded me of the old Mouse Trap game when I saw it...." Read more

    124 customers mention "Creativity"120 positive4 negative

    Customers find the ideas presented in the book very pleasing. They appreciate that it teaches mechanical thinking and provides new ideas of what to build with Legos. Readers also mention the book is a great book of ideas for using Legos that are just sitting around. They say the concept of the kit is good and it gives them a good opportunity to explain basic engineering concepts like attention to detail.

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

    "...are thoughtfully done. I think they struck a very good balance so this would not cost an arm and a leg...." Read more

    "...So much creativity was shown and I had a blast too!..." 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

    72 customers mention "Gift value"67 positive5 negative

    Customers find the book a great and educational gift. They mention it's perfect for little boys and has cool projects.

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

    "I bought this for my grandson who loves Legos. This is the perfect gift for the child who has plenty of Legos...." Read more

    "Great gift!" Read more

    "The Lego reactions set is an awesome gift to give to a child...." Read more

    164 customers mention "Instructions"92 positive72 negative

    Customers have mixed opinions about the instructions in the book. Some say they're clear and helpful, while others say they're too complicated to understand.

    "...Illustrated Instructions:The included book provides clear, step-by-step instructions with colorful illustrations, making it easy for..." Read more

    "You need many more pieces to assemble, the ones included in the kit are not enough and can be frustrating." Read more

    "...chain reactions are fun for children to assemble, challenging to make fully, reliably functional and thrilling once they work for that first time...." Read more

    "...It does require my help to build the machines; but that's totally okay with me because it helps me learn right along with him...." Read more

    175 customers mention "Sleeve content"20 positive155 negative

    Customers say the book doesn't come with many parts and requires several extra pieces to build any of the creations. They also mention it doesn't contain all the Legos you need.

    "...ConsLimited Pieces: The set includes a limited number of LEGO pieces, so additional LEGO sets might be needed for more complex projects...." Read more

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

    "...Instead of being frustrated that this kit does not come with every part, embrace the challenge! Help your kids think outside the box...." Read more

    "...'ve already completed to make others since there are not enough special pieces to go around...." Read more

    37 customers mention "Paper content"2 positive35 negative

    Customers find the paper content disappointing and flimsy. They mention some parts are made of thin paper and too flimsy to actually work reliably. Readers also mention the slides are made of paper, which tears and bends easily. Additionally, they wish the pop-out pieces were thin plastic rather than paper.

    "...make it all go together are printed on cardboard, and the cardboard becomes shopworn in fairly short order...." Read more

    "...the product if it hadn’t been damaged, he likes but the paper components were disappointing and will not last long...." Read more

    "The balls were basically plastic marbles . I liked it had Legos. It was still a bit struggling (challenging) to put together." Read more

    "...that some of the things are cheaply made because it uses paper in some of the contraptions but my son still enjoys it...." 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.
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    Top reviews from the United States

    Samrat Roy
    5.0 out of 5 stars A highly engaging and educational kit that combines the fun of building with the learning
    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.
    One person found this helpful
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    tenor1
    5.0 out of 5 stars Well executed by the authors. Think about these things before purchase.
    Reviewed in the United States on February 27, 2015
    Style: Chain ReactionsVerified Purchase
    This was not an easy concept for the authors and product planners to execute. It's radically different than just assembling Legos from an instruction booklet. A lot of thought and effort went into the chain reaction concepts and resulting projects. The book layout, the security so that the parts actually arrive at the consumer, the durability of the non Lego paper components, the directions on how to fold the paper components etc, etc, etc. are thoughtfully done. I think they struck a very good balance so this would not cost an arm and a leg. Some might call it cheap (a few Lego pieces, a beautiful well laid out instruction book with nicely printed paper components) but I call it cost effective. 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.

    I supported my 7 year old grandson's effort to build the first project. My 5 year old grandson looked at what was involved and walked away I think because it looks complicated and the projects contain very few pieces. Both of them are very skilled Lego builders who pride themselves on their ability to throw lots of pieces together quickly. Does that sound familiar to you?

    So... I think what motivates most young Lego builders is assembling lots of pieces quickly and having a relatively static object to play with when done. The chain reaction projects aren't that at all. They don't look like much -to an adult - when complete. They are challenging in my view mostly because of the need for precision alignment between the paper parts and the Lego motion actuators the kids assemble to create the Chain the Reaction. Once assembled and aligned, making it function can require trial and error, motivation to succeed, precision hand and eye coordination and patience. I think that doing the first project successfully might be a make or break point for this product. Failure would surely be a deterrent towards doing subsequent projects in the book so initial success seems very important at least for younger children. The greatest joy my grandson experienced (and it was great joy) was the moment the first project functioned properly for the first time after several complete and partial failures (just as his patience was wearing thin) and then joy again once the chain reaction was rehearsed and easily repeatable so as to show his parents without failure. Having achieved this first success he was excited about doing more projects. It remains to be seen what his long term interest level will be.
    Yes.. This is radically different than just sticking prices together and success is not easy considering that the projects are minimalist in the total number of pieces. However I think the lessons and skills this product teaches are very important, worthwhile and noteworthy. Aside from the skills mentioned above this is also elementary physics of motion, weight, angle, momentum, etc. In summary, it appears that, assuming success along the way, the complicated chain reactions are fun for children to assemble, challenging to make fully, reliably functional and thrilling once they work for that first time. It's all good stuff!
    1,763 people found this helpful
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    Maggie
    4.0 out of 5 stars Christmas Gift for 10 Year Old
    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
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    Top reviews from other countries

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    Nilton Tadeu Ferreira Filho
    5.0 out of 5 stars Muito divertido
    Reviewed in Brazil on July 18, 2024
    Style: Chain ReactionsVerified Purchase
    Esse lego é muito divertido de montar e fazer as experiências, só poderia estar em português
    Report
    iliana
    5.0 out of 5 stars FOMENTA LA CREATIVIDAD
    Reviewed in Mexico on June 17, 2024
    Style: Chain ReactionsVerified Purchase
    Es un buen juguete. Buena calidad. Fomenta la creatividad. Vale la pena regalarlo.
    Report
    Mrs V
    5.0 out of 5 stars Lego chain reactions
    Reviewed in the United Kingdom on September 25, 2024
    Style: Chain ReactionsVerified Purchase
    Great little collection of fun experiments to get the science brain fired up. This is also an awesome way to make all your old Lego more exiting again. Highly recommend.
    Report
    VCGLL
    5.0 out of 5 stars Nice nice!
    Reviewed in the Netherlands on December 5, 2023
    Style: Chain ReactionsVerified Purchase
    It is just a nice book from lego with extra pieces to learn aboutchain reactions. My boy loved it.
    Report
    Vanessa Fern
    5.0 out of 5 stars It will keep your child busy for hours
    Reviewed in the United Arab Emirates on December 27, 2022
    Style: Chain ReactionsVerified Purchase
    My 5 year old loves creating chain reactions. This was a wonderful Christmas gift. Even though an adult supervision is required, you must allow the kids to read the book and create their own chain reactions. I was surprised to see my 5 year old go step by step and build the machines. Of course, you need extra Lego's This is just an addition.
    Report