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Snap Circuits Jr. SC-100 Electronics Exploration Kit, Over 100 Projects, Full Color Project Manual, 28 Parts, STEM Educational Toy for Kids 8 +
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Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
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- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
- SO MANY TOYS IN A SNAP: Make dozens of cool electronic gadgets - all from one box! A safe and fun way to introduce children ages 8+ to the basics of electrical engineering! Build exciting projects and toys using the included colorful instruction book!.Ideal for ages:8 years and up
- PROJECTS THEY'LL LOVE: So many fun electric-powered projects you can make and play! Ages 8 to 108 will love building 100+ projects! Have fun while building practical skills and learning the basics of circuitry. Build a flying saucer in a snap and watch it take off and sound the alarm! Kit includes 29 Snap Circuits parts.
- GREAT GIFT Give the gift of learning and fun this holiday season! Snap Circuits kits will keep kids busy and having fun all year round. Combine with other Snap Circuits kits for even more projects!
- NO EXTRA TOOLS NEEDED Elenco Snap Circuits kits include everything you need to start learning immediately - and more. Unlike traditional electronics kits, no soldering or tools are required to build. The numbered and color coded pieces snap easily onto the included plastic grid. Batteries required.
- AWARD WINNING KITS! We're proud to produce high quality products loved by kids, parents,and educators. Snap Circuits kits have won a number of awards - including the Specialty Toy of the Year Award, Seriously STEM! award, Good Housekeeping's Best Toys, Purdue University's Engineering Gift Guide, National Parenting Center's Seal of Approval, Toy Insider's Top Holiday Toys, placement on the Dr. Toy list of 100 Best Children's Products and placement on the Dr. Toy list of Best Educational products, and the "Stem Approved" Trustmark from Stem.org.
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Product information
Product Dimensions | 12 x 9.5 x 1.75 inches |
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Item Weight | 1.41 pounds |
Country of Origin | China |
ASIN | B00008BFZH |
Item model number | SC-100 |
Manufacturer recommended age | 8 years and up |
Batteries | 2 AA batteries required. |
Best Sellers Rank | #449 in Toys & Games (See Top 100 in Toys & Games) #4 in Educational Science Kits |
Customer Reviews |
4.8 out of 5 stars |
Is Discontinued By Manufacturer | No |
Release date | June 12, 2006 |
Department | ToysAndShoes |
Manufacturer | Elenco Electronics LLC |
Warranty & Support
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Snap Circuits Jr. SC-100 Electronics Exploration Kit, Over 100 Projects, Full Color Project Manual, 28 Parts, STEM Educational Toy for Kids 8 +
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Product Description
Product Description
Create Working Electronic Circuits Snap Circuits Jr (SC-100) comes with 28 components to create 100+ different electronic projects. The pieces, which include snap wires, slide switches, an alarm circuit, a music integrated circuit, and a speaker, snap together easily on the included plastic grid--no soldering required. Each piece is numbered and color-coded to make identifying them easy. These components combine to create working circuit boards just like the ones found inside televisions, radios, and other electronic devices. With its easy-to-follow instructions, Snap Circuits gives your child a hands-on education in how electrical circuits work to run the everyday devices that they're familiar with. They'll also gain valuable lessons in building and in following instructions. The project manual includes large color illustrations and simple directions for each project. The projects include a sound-activated switch, a musical doorbell, a voice-controlled lamp, a flying saucer, and a light police siren. With these projects, children will experiment with things like electric switches, integrated circuits, digital circuits, fuses, and the transformation of circuit sounds into other sounds. Includes: Plastic snap-grid, 32 electrical components, and 1 project manual. Recommended for children 8 years and older.
Amazon.com
Give your child an exciting, hands-on introduction to electronics with Elenco Electronics Snap Circuits Jr. SC-100. This innovative kit contains over 30 color-coded, real circuit components that snap together to create working electronic circuits and devices. Recommended for children 8 and older, this set offers 101 do-it-yourself projects that will give your child an entertaining, concrete education on how electronics work.
Create Working Electronic CircuitsSnap Circuits comes with over 30 pieces to create 101 different electronic projects. The pieces, which include snap wires, slide switches, an alarm circuit, a music integrated circuit, and a speaker, snap together easily on the included plastic grid--no soldering required. Each piece is numbered and color-coded to make identifying them easy. These components combine to create working circuit boards just like the ones found inside televisions, radios, and other electronic devices.
Simple, Fun Projects Let Kids Learn While They Play
With its easy-to-follow instructions, Snap Circuits gives your child a hands-on education in how electrical circuits work to run the everyday devices that they're familiar with. They'll also gain valuable lessons in building and in following instructions. The project manual includes large color illustrations and simple directions for each project.
The projects include a sound-activated switch, a musical doorbell, a voice-controlled lamp, a flying saucer, and a light police siren. With these projects, children will experiment with things like electric switches, integrated circuits, digital circuits, fuses, and the transformation of circuit sounds into other sounds.
Grow as You Go
Because the projects are arranged in order of complexity, kids can build on their skills as they progress through the manual. The lessons start out with a simple electric light and switch project that demonstrates how electricity is turned on and off with a switch. Further along, kids can put together a two-speed fan, create clap-controlled sounds, and more.
Design Your Own Circuits and Upgrade Your Kit
Once children have mastered several of the techniques introduced in this kit, they can use the components to experiment and create their own customized circuits and electronic devices. The Snap Circuits Jr. SC-100 can also be upgraded to the Snap Circuits SC-300, Snap Circuits Pro, or Snap Circuits Extreme with the purchase of a UC-30, UC-40, UC-60 upgrade kits, respectively. Kids will enjoy additional parts, manuals, and projects that'll take their kit--and their fun--to the next level.
Snap Circuits Jr. SC-100 requires two AA batteries, which are not included.
What's in the Box
Plastic snap-grid, 32 electrical components, and 1 project manual.
Important information
Safety Information
Small Parts Warning
Legal Disclaimer
AGES 8 TO 108!
From the brand

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Snap Circuits
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Snap Circuits
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Teach Tech
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Elenco
From the manufacturer

Build over 100 cool, unique projects – all from one box!


Combine with other kits
You can combine and create with other Snap Circuits kits to expand the imagination for an even wider array of projects. Kids can invent their own circuits, too. The creativity, imagination and possibilities are endless!
Easy-to-Follow Manuals
Includes clear and concise manual with instructions for over 100 fun and exciting projects. Full parts listing with descriptions of all pieces to help understand terminology. All project instructions have colorful pictures to help kids visually understand the project and aid with their progress.
What's inside
All Snap Circuits kits come with everything you need (batteries excluded) to complete real electronic circuits. Components combine to create working circuit boards just like the ones found inside televisions, radios, and other electronic devices.
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Customer Reviews |
4.7 out of 5 stars 3,291
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4.8 out of 5 stars 28,013
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4.8 out of 5 stars 28,013
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4.8 out of 5 stars 5,865
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4.8 out of 5 stars 5,865
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4.7 out of 5 stars 4,065
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Price | $24.99$24.99 | $29.99$29.99 | $89.98$89.98 | $49.95$49.95 | $95.99$95.99 | — no data |
Model Number | SCB-20 | SC-100 | SC-500 | SCA-200 | SCG225 | MYHSCP20 |
How Many Projects | 21+ | 100+ | 500+ | 200+ | 125+ | 53 |
Number of Parts | 13 | 29 | 75 | 36 | 45 | 72 |
Batteries Required | ✓ | ✓ | ✓ | ✓ | No | ✓ |
Recommended Age | 5+ | 8+ | 8+ | 8+ | 8+ | 8+ |
Features Alternative Energy | no data | no data | no data | no data | ✓ | ✓ |
What's in the box
Product guides and documents
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find this electronics kit educational and fun, with easy-to-understand instructions and a colorful manual. The kit is well-constructed with molded-in durable snaps and has lasted for years of use, featuring 100 different projects that range from simple to complex. Customers consider it a great gift for children interested in science and technology, particularly those in the 5-8 age range, and find it worth the price.
AI-generated from the text of customer reviews
Customers find the science kit educational, noting it helps with problem-solving skills and serves as teaching material for parents and teachers. One customer specifically mentions it is great for teaching basic circuits.
"...but my 4-year-old thoroughly enjoyed supervised lessons. He did not want the lessons to end. Our first session lasted over 2 hours...." Read more
"Loads of fun and learning.." Read more
"...Well these are amazing. The colorful components really invite kids to use them, and the whole kit and the project book are just fantastic...." Read more
"...My daughter already seems to grasp some of the basic concepts pretty well, although I have to keep an eye on her so she doesn't accidentally create..." Read more
Customers find the science kit engaging and fun, particularly enjoying how it makes circuit building enjoyable.
"...He said they had one at school. Kept him busy for hours." Read more
"VERY entertaining/rewarding for my 9yo and his dad, who is an electrician, to do together! Highly recommend the 300 set." Read more
"Loads of fun and learning.." Read more
"The item is worthwhile and should be lots of fun...." Read more
Customers find the electronics kit easy to use, with clear instructions that are simple to follow and assemble.
"...The booklet/instructions are well-written, easy to understand, and explains the how's what's why's and how's of circuitry...." Read more
"...It's very well made and easy to use." Read more
"...Maybe I just missed it. In summary: Great kit, really fast and easy, enough projects and flexibility to provide fun and learning for a long time...." Read more
"...Once we opened it, we couldn’t quit playing with it. The directions start simple and get more complex...." Read more
Customers are delighted with the functionality of the science kit, finding it to be a superior toy that works well.
"...really invite kids to use them, and the whole kit and the project book are just fantastic...." Read more
"...However, assuming things work okay, there are several nice Radio projects (complete with volume control and tuning) which look to be pretty fun...." Read more
"...They love doing the projects ,its great quality time.Look forward to buying more advanced kits in the future as she gets older." Read more
"It appears to be fully functional and looks like a wonderful toy. Basic reading comprehension is necessary to fully enjoy it...." Read more
Customers find this science kit to be a great gift for children in the 5-8 age range, particularly those interested in science and technology.
"Son loves this item, great for any kid interested in science." Read more
"...Pros: * Physical form - this is perfect for little hands. Check out my photo of the resistor, with a regular size coffee mug for scale...." Read more
"...colorful instruction manual is easy to follow, making it perfect for kids aged 8 and up (and even adults who want to join the fun!)...." Read more
"Perfect for 9 year old. I love this style as it gets them to think and be creative. Son has played with it for hours and continues to play with it...." Read more
Customers appreciate the build quality of the electronics kit, noting that it is well constructed and will last for years to come, with one customer mentioning that the pieces are sturdy enough for children to connect them.
"...The connections are strong and durable..." Read more
"...It's very well made and easy to use." Read more
"...The quality is great, pieces are sturdy and snap easily to the circuit board. Perfect for a different kind of fun." Read more
"Good quality. Very fun." Read more
Customers appreciate the variety of projects in this electronics kit, which includes 100 different builds ranging from simple to complex, with interesting combinations possible.
"A lot of different circuits possible, and they have many examples for projects. The connections are strong and durable..." Read more
"...by including a motor with a helicopter blade, noisemakers, and other cool things...." Read more
"...In summary: Great kit, really fast and easy, enough projects and flexibility to provide fun and learning for a long time...." Read more
"This is a great project to do with the kids, there are so many different projects to build, it keeps them interested and learning!..." Read more
Customers find the science kit to be well worth the price, appreciating the quality relative to the cost, with one customer specifically mentioning the priceless working FM radio feature.
"The item is worthwhile and should be lots of fun...." Read more
"...stands behind the broken items in our kit, then I think it's worth the money and will provide quite a bit of entertainment (and educational) value..." Read more
"...much fun I had with it when I was younger, and that combined with the low cost of the base set led me to fold on buying it for my little brother as..." Read more
"A great kit at a good price" Read more
Reviews with images

Fun and rewarding!
Top reviews from the United States
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- Reviewed in the United States on April 20, 2025Size: 300 ProjectsVerified PurchaseBought these as a birthday gift for our niece, who absolutely loved them. I always wanted to get these for some kid, and fortunately, the niece aged right into the perfect demographic for me to do so. Just having turned 6, I was afraid it would maybe be a bit over her head. I was wrong. Over the course of 40 minutes, we started knocking out one after another of the HUNDREDS of included projects. The booklet/instructions are well-written, easy to understand, and explains the how's what's why's and how's of circuitry. I enjoyed playing with it myself, and I'm in my forties. If you're not buying kids Legos, pay the premium, and grab a set of these.
- Reviewed in the United States on May 27, 2025Size: 100 ProjectsVerified PurchaseMy grandson was thrilled with this toy. He said they had one at school. Kept him busy for hours.
- Reviewed in the United States on May 2, 2025Size: 300 ProjectsVerified PurchaseThis kit is amazing! The kit is technically for ages 8 - 108 (yes 108 per the box!!), but my 4-year-old thoroughly enjoyed supervised lessons. He did not want the lessons to end. Our first session lasted over 2 hours. We look forward to incorporating this into dedicated weekly lessons at home. Definitely purchase this one if you're thinking about buying it! You won't regret it!!
- Reviewed in the United States on April 27, 2025Size: 100 ProjectsVerified PurchaseA lot of different circuits possible, and they have many examples for projects.
The connections are strong and durable
Only problem is they switched the photoresistor has been changed to phototransistor, and it's directional but the booklet doesn't show it. It makes it harder for the kid to build properly by himself, but I assume the learning curve would be short.
- Reviewed in the United States on January 17, 2025Size: 750 ProjectsVerified PurchaseBought this (very far in advance) for my daughter for Christmas, as I was looking for something similar to the Radio Shack 200:1 type kits I had as a child. Unfortunately, those don't exist anymore - but this is pretty close. The instructions could use some work, as they do not really describe what the components are doing and it feels more like teaching them to build Legos rather than read or understand electronic components and circuit diagrams, but I can understand how it might be the best option given the limitations of pieces being used. The old Radio Shack units had springs and everything was wired together with (sometimes hundreds!) of little jumper wires. Granted, I suppose not much is really wired that way anymore, and perhaps this more "circuit board style" is more appropriate for today's kids (and adults!). Either way, she has really enjoyed playing with it and learning about dc current flow, how reversing polarity on the motor causes it to spin in different directions, and troubleshooting her circuit lead to an understanding of how diodes are only one way. It's achieving it's goal, and for that, it's great.
What's not so great, however, is the packaging. It's two cardboard and plastic molded trays, and just a slip cover. It's very difficult to store, since anything other than sitting flat on a shelf will cause the slip cover to come off, the trays to fall, and pieces to go everywhere! It really needs a traditional, closing box. Will have to try to find something that is more appropriate to hold the pieces, which is unfortunate.
- Reviewed in the United States on May 11, 2025Size: 300 ProjectsVerified PurchaseVERY entertaining/rewarding for my 9yo and his dad, who is an electrician, to do together! Highly recommend the 300 set.
VERY entertaining/rewarding for my 9yo and his dad, who is an electrician, to do together! Highly recommend the 300 set.
Images in this review
- Reviewed in the United States on May 18, 2025Size: 100 ProjectsVerified PurchaseLoads of fun and learning..
- Reviewed in the United States on April 25, 2025Size: 100 ProjectsVerified PurchaseBought this for my 8 year old grandson. He absolutely loves it. He played with it building different types of circuits for several days in a row. It's very well made and easy to use.
Top reviews from other countries
- Sesh S.Reviewed in India on November 7, 2016
5.0 out of 5 stars Superb build quality, very well organized 'experiments'. Absolutely worth it.
Size: 750 ProjectsVerified PurchaseI have been eyeing this for sometime for my kids and when I saw this listed at an amazing price, very close to the prices available in the US, I grabbed it. It also reached me very quickly. Thanks Amazon.
The product is designed to get kids excited about electrical / electronics around them. You could pull together a breadboard and several of these components at a much lower price. You would be still stuck with messy / a little unsafe soldering etc. or with ugly wires sticking around. While for some, that could be well be the 'charm' of 'rolling up your sleeves', I don't believe that is a great first introduction. Because much of the bandwidth will be spent trying to 'make it work'.
Now this on the other hand, has really high quality board and parts. The manuals (there are 5 of them with this set!!) are clear and easy to follow. There is enough basic information on not just 'what' but 'why' you do them. For those who want more detailed information, you could easily pull more content online from the web.
The way I chose to use it, was to get the kids (11 and 5 years) to pull together anything that caught their fancy from the hundreds available. They started attempting the very complicated stuff, but quickly agreed they would rather go in sequential order :-) The 'experiments' are organized in sequential order of difficulty / complexity. When they pulled it together, they got great satisfaction from making the bulbs flash / sirens beep etc. I would then ask them 'why they think it happened'. So without getting into complicated IC circuitry which would be above them, they started understanding the need for logical gates and how circuits work or computers 'think'. I then asked my 5 year old what logical 'gates' (OR, AND, XOR) etc. he would use for him and his friends to reach the play park and use various equipment (swing : only one allowed at a time, see saw : perforce needs two etc.) This was great fun for him and terrific learning as well. My 11 year old is now trying to seriously decide whether the 'oscilloscope' principle is best served for engineers or doctors.. and therefore what she should become when she grows up :-)
Absolutely love it!! I wish I had these things when I was growing up.
- KlimReviewed in Singapore on May 23, 2021
5.0 out of 5 stars Awesome product
Size: 300 ProjectsVerified PurchaseMy grandson always played with the snap circuits whenever he come over to my place ever since I bought it for him. He will do different projects from the one listed in the books.
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Jaime Dario Olguin FloresReviewed in Mexico on October 23, 2024
5.0 out of 5 stars Excelente
Size: 500 ProjectsVerified PurchaseDiviértete jugando, entretenido y con mucho aprendizaje de por medio, viene en inglés con mucha explicación científica e imagines para guiarte
- QPS AdventurerReviewed in Canada on April 30, 2022
5.0 out of 5 stars Excellent kit and great learning tool
Size: 500 ProjectsVerified PurchaseThis I got as a gift for my partner. She is not technically inclined but the plans are easy to follow. Being able to build something that works and does something really encourages the user. It also gives me chance to explain what each component is doing to make the circuit work.
If you have a kid interested in electronics or as in our case an older adult trying to learn about something new this is great.
The kits themselves are well built and reasonably robust.
- Girish BhatReviewed in the United Arab Emirates on December 17, 2024
5.0 out of 5 stars Engaging for kids
Size: 100 ProjectsVerified PurchaseGood quality and giving kids an insight of how electronic works