Discover how 3D printing technology is transforming lives across the globe. e-NABLE Benicia is a local chapter of a global volunteer network that designs, iterates, and distributes low-cost prosthetic devices to underserved communities. From supporting landmine survivors in Ukraine to helping people in Uganda. Visitors will explore upper-limb assistive devices and learn about the additive manufacturing process used to create them. I will be showcasing several prosthetic hands I have fabricated, detailing the assembly process, and explaining how it all works.

TeachKind (PETA’s humane education division) brings kindness to life through fun, interactive learning! Stop by our booth to explore free K–5 resources like coloring books, worksheets, stickers, and animal-themed comics. For upper grades, check out our KindFrog: a dissectable silicone model that gives students a hands-on way to learn biology without using animals.

Plus, don’t miss a special appearance by Ellie the Elephant: a lifelike, talking animatronic who shares fascinating animal facts and helps students practice perspective-taking. Ellie’s message of empathy for all is delivered in a fun, memorable 30-minute presentation the whole family will enjoy!

Step into a hands-on STEAM experience where science and art come to life through light! At the Soaring Phoenix booth, students will explore the magic of bioluminescence, create stunning shadow art using real plants, and design their own sun-powered prints. Each activity blends creativity with scientific discovery, helping students understand how light interacts with the natural world in fun and meaningful ways. Perfect for curious minds of all ages!

Have you ever wondered why things slow down, how machines keep moving smoothly, or why oil is so important in engines?

Join us for an exciting, hands-on STEM experience where students explore the hidden science of friction, wear, and lubrication—also known as tribology, the science that keeps the world moving.

Participants will:

Test how different surfaces affect motion using a friction ramp experiment
Explore how materials wear down and form protective layers using a mini tribology testing setup
Discover how ball bearings and roller bearings help machines move efficiently

• Learn how lubricants (like oils and greases) reduce friction and improve performance

Through fun experiments and real-world examples—from bicycles and cars to industrial machines—students will see how engineers design systems to reduce energy loss, improve efficiency, and extend machine life.

This interactive exhibit connects physics, engineering, and even future technologies like AI and predictive maintenance, showing how simple concepts power the modern world.

Perfect for curious minds of all ages!

The Salvation Army Kroc Center is a community center offering fitness, aquatics, youth programs, and family activities for all ages. Camp Kroc provides a safe, fun, and engaging environment where kids can explore, build friendships, and grow through themed activities, sports, and creative play all summer long.

Representatives from Solano County Library will be walking participants through the process of making glow in the dark slime. Using accessible ingredients like glue, contact solution, baking soda, and of course, glow in the dark pigment, we can show them how to make their very own slime to take home with them.

Brickspace provides Lego® building and STEAM (science, technology, engineering, art and math) hands-on programs for students from early childhood to 8th grade. We know that preparing students for the workplace of tomorrow is a priority for schools all over the world. Using Next Generation Science Standards, our classes create opportunities for practicing 21st century skills -  they enhanced students' critical thinking, creativity, communication and collaboration skills. Through our classes, we challenge students to use their imagination and their knowledge of engineering and science to problem solve: they design, build, test and evaluate using set criteria. Students can expect to "fail" safely and they are encouraged to come up with different solutions to their problem.  Our programs aspire to help kids build confidence and develop the desire to learn more. We scaffold our lessons so that students can build upon the concepts they have learned. We hope to work with your student soon!

No need to be a Rocket Scientist (yet). Decorate, build, and launch your custom rocket. Check out how high your rocket will fly.

It's time to relive history and experience nostalgia for computers and game systems from the past. Stop by this exhibit to see computers from the Apple 1 and the original IBM PC to the Commodore 64 and more. Experience what it was like to play games on the Atari 2600, Nintendo Entertainment System (NES), Sega Saturn, and PlayStation 1. Homemade arcade machines will also be on display for classics like Pac-Man, Donkey Kong, and other arcade hits.

If you enjoy blowing bubbles, try your hand at making GIANT Bubbles. How large a bubble can you make?

Bay Area Engine Modelers is a hobby group that enjoys machining model engines that run.  Projects range from simpler single cylinder steam engine to multi cylinder internal compustion Automobile and aircraft engines.  Examples of these are shown below.

BAEM welcomes new members.  BaemClub.com website has information about monthly meetings and an archive of newsletters sharing information on engine design, construction, and operation.

Soldering is an important skill in Electronics, Plumbing, Electrical work, as well as many industrial uses. Learn to solder and you get to keep your circuit that you soldered together.  You will assemble and solder a robot badge with two blinking LEDs, resistors, a battery clip, and either a tie clip or lanyard.  You get to keep your robot badge!  Sponsored by PCBWay.com

A selection of phones, ranging from electro-mechanical key system through modern VoIP.

Bay Area sound artist and instrument inventor Bryan Day will present a hands-on demonstration of a selection of his homemade instruments and sound sculptures, many built from upcycled household materials and discarded electronics. Bryan will discuss how each piece was developed, sharing stories about their construction and the unexpected sounds they produce. Visitors will also have the chance to explore and play the instruments themselves.

Bryan Day is a sound artist, instrument inventor, and conceptual artist based in the San Francisco Bay Area. Using scavenged electronics, repurposed mechanical components, and amplified materials, he reimagines them as constructivist sound sculptures. Since the late 1990s, he has built over a hundred sound devices ranging from amplified measuring tapes and hacked radio transceivers to electromechanical installations using magnets, hard drives, and pendulums. His recorded work spans noisy electroacoustic improvisation, droning minimalism, and audio collage, featured in projects such as Euphotic, Collision Stories, and Seeded Plain. He has performed, taught workshops, and built sound installations across Europe, Asia, and the Americas. By day, he works as a museum exhibit and software developer at the Exploratorium in San Francisco.

Oobleck is a non-newtonian fluid. That is, it acts like a liquid when sitting still, but acts like a solid when a force is acting on it (strained). Oobleck gets its name from the Dr. Seuss book Bartholomew and the Oobleck where a gooey green substance, Oobleck, fell from the sky and wreaked havoc in the kingdom. Here the Oobleck will be made from corn starch and water on top of a speaker. You get to control the excitation using Frequency and Amplitude knobs to watch the Oobleck dance! If you touch the dancing peaks the liquid will feel like rubber.

See and hear the musical lightning from the Tesla Coil. If you can play the piano you may be able to play your song on the Tesla Coil's keyboard.

A mesmerizing display of fifteen pendulums with different frequencies. Watch the physics of harmonics in action as the pendulums form patterns going in and out of phase with each other.

In this twin river challenge you design, build, and test your watercraft. Then race a friend or just see how well your design works.

Vallejo Gem and Mineral is a non-profit organization that has been around since 1954. We are a 501(c)(3) nonprofit dedicated to sharing our knowledge of lapidary arts and mineralogy. We encourage the interest of geology, mineralogy and metalsmithing among people of all ages, young and old.

Our club has a workshop at the Vallejo Fairgrounds with lapidary equipment for members use. We have field trips throughout the year for rock collecting. We also offer classes in metalsmithing and mineralogy.

Our tables at the Steam Discovery Festival will have an ongoing demonstration of cabochon making using a multi wheeled Genie cabbing machine. We have a display board that shows all the stages required to turn a rock into a beautiful cabochon. There will samples of some different types of rocks that are found in California. And for real rockhounds (over 5 yrs) we have some beautiful, polished rocks. We can turn that rock into a necklace or a keychain or you can enjoy it just as it is.

Please come by and see us!

Unleash your inner cat burglar to navigate a high-tech laser alarm system.  This is a timed challenge to see how fast you can make it through the laser field but be careful because every laser beam you interrupt adds 10 seconds to your time.  New designed for this year, check out the new trailer with up to 30 laser baams (adjustable for all skill levels, youth to seniors).

The Academy of 21st Centuey Learning will feature STEAM activities for all all ages, as well as feature student sciecnce projects submitted in the 2026 Solano County Science and Engineering Fair.

The Celestial Garden by Astro Botanicals is an immersive, walk-through art installation made of fabric, air, light and sound - designed to spark curiosity, imagination, and calm for visitors of all ages. Inspired by nature and science. These luminous inflatable sculptures combine art, engineering, airflow, lighting design and fabric - blending creativity with STEAM principles. The sculptures invite families to explore together, notice details and experience art with wonder. This installation would be part of a pilot showcase for Lúmena, a new family-friendly illuminated arts and wellness experience rooted in creativity, safety, and community connection.

Come tour the newly updated Solano College makerspace: The Maker's Station! Join us for a 3D printing workshop where you can design a custom keychain or sign that we 3D print for you. Or get you name laser engraved on a dog tag. We have a limited number of resources, so please come early.

Are you a Star Wars fan? Appeal to your inner captain and pilot the Benicia Makerspace’s Tie Fighter.

Explore the ChatBots programmed by the Solano County Office of Education's Girls Who Code Club students!

Join us to chat and to learn more about the club and free robotics summer camps offered in June.

See how a home-made game console can be built and try your hand at some retro video games.

We like to fly balloons and get them back or at least keep track of them in orbit. We launch high altitude balloons, predict where they'll land and track their flight and find the payloads by radio. We launch our balloonSats (pico balloons) which float at about 50,000 feet for weeks to months to years in orbit. We use solar powered radio beacons to track the balloons in orbit. We are always looking at new ways to build and launch out balloons and payloads.

We are a STEAM based business that not only teaches how to tie dye but the science behind it.. Our Guests wil be able to create thier own tie dye item while learning. Bring a 100% cotton T-shirt or pillowcase from home and you will be able to tie dye it for a $5 materials fee. If you forget your item we will have some blanks avail for a discounted cost.

Booth about our upcoming festival on Mare Island photos and videos on our large screen TV we can bring our own power. With some giveaways.

Come see the creative and innovative 2026 Solano County Science and Engineering Fair projects! Our showcase highlights projects from Life Science, Physical Science, Environmental Science, Mathematical/Computational Science, Behavioral/Cognitive Science, Product Testing, and Prototype Development.

Tesla Vallejo will showcase our latest vehicles demonstrating full self-driving supervised capabilities. Attendees with a valid driver’s license can experience firsthand how our technology merges innovation with real-world application. Join us to explore the future of mobility and engage with projects spanning science, engineering, and beyond."

Solano Community College will host an information table highlighting academic program-degrees, enrollment support, and student services available to prospective students. Representatives from Outreach & Recruitment will provide guidance on applying to SCC, exploring career pathways, financial aid options (including FAFSA/CADAA support), Free College through our Promise Grant, disucss upcoming registration dates for Summer/Fall 2026, share details on upcoming campus events. Attendees can receive program brochures, college swag, and one‑on‑one assistance in getting started on their educational journey.

Display Kindred Electirc converted classic Bronco in outdoor area with pop up table and some seating. Team of 5 to 6 from various teams in the organization (Mech. & Electrical Engineering, Production, etc.) to share and show off the work we've done, answer technical questions, and engage with students about our personal educational and career paths that have allowed us to take part in such awesome projects!

Team 701, the RoboVikes, is a student led robotics team that teaches STEM to people in our community in fun and exciting ways. We build a new robot every year to compete in the FIRST Robotics competition. This gives participants the opportunity for hands on learning. We also compete for awards that recognize our community outreach, team organization, business plan, and creativity.

Get ready to spark curiosity and creativity! Explore hands-on STEAM experiences with circuits, crafts that inspire, and build-and-explore stations that invite tinkering, problem-solving, and imagination. Come experiment, create, and discover what’s possible!

Crochet, loom knitting and weaving.

Join One People Tribe for our FREE Community Paint Party with no expectations or pre-reqs! The only requirement is to relax and have fun!! All ages welcome!! Face painting and Canvas painting!

Vallejo Pista Sa Nayon (town festival) is a FREE community festival welcoming attendees to experience the Filipino culture. Our signature festival is curated by volunteers representing all generations (children, high school, college, seniors) who have proudly come together to keep this long time tradition in our community alive and strong.

Visit our booth and meet our team and learn more about what to expect when you attend!

Festival info: Saturday, June 6, 2026. 10am-6pm. Mare Island Coal Sheds, Vallejo

The quadruped robotics industry has seen tremendous growth, both in terms of software and hardware development. The Unitree Robotics Go1 is a bionic quadruped robot that behaves like a real dog — it accompanies you while you are jogging or walking in the park, helps you carry your stuff, and can even bring your morning paper. The Go1 Pro model amazes everyone with its dog-like behavior and is speedy and robust, and can follow its ‘dog owner’ while avoiding obstacles along the way, trotting at a maximum speed of 10 mph. Come see this robotic dog in action in Room 1855.

Watch Industrial Robots load and unload material into various CNC mills and lathes as they cut various aluminum parts. You can also interact with various Automation Equipment students use to train with. You will have a chance to talk with students and learn more about the Advanced Manufacturing programs at Solano College. This exhibit will be located in Room 1855.

Solano Community College Automotive Technology program

• You will be introduced to the theory and practice of automotive repair and maintenance, and study the vital parts of the internal combustion engine and power transmission.

• You will learn basic electronic concepts while testing, maintaining, adjusting, and repairing batteries, alternators, starters, wiring, ignition systems, and accessories.

• You will be shown methods of scientifically diagnosing automotive malfunctions, and the techniques of troubleshooting.

• You will practice using various specialized equipment for examination of exhaust emissions, fuel, and other systems.

Snap Circuits, Sponsored by Matthew Turner Elementry School. Learn more than just the basics of electronics, how switches and circuits work. Over 300 unique electronic projects within the Beginner and Junior kits, you’ll build simple problem-solving, troubleshooting, and planning skills!

Interactive exibits where gear turn cranks to move music rolls or film. A hands on model harmonic punch will also be shown.

Vallejo Project TAPH20: Ensuring Clean Water Access in Vallejo

The TAPH20 initiative by the Vallejo Project emphasizes the critical importance of clean water for community health and sustainability. Access to safe drinking water is essential for preventing illness, promoting well-being, and supporting economic and environmental stability. Unfortunately, many underserved communities face challenges related to water contamination, infrastructure decay, and limited resources for water testing and purification.

How We Ensure Clean Water in Vallejo:

1. Water Testing: We conduct routine water quality assessments in Vallejo to identify contaminants such as lead, bacteria, heavy metals, and chemical pollutants. Our testing methods include field testing kits, laboratory analysis, and community-based sampling to ensure accuracy and transparency.


2. Filtration and Purification: Once contaminants are identified, we implement water filtration solutions, including activated carbon filters, reverse osmosis systems, and UV purification to improve water quality. These methods help remove harmful substances while preserving essential minerals.


3. Community Education & Advocacy: We empower Vallejo residents with knowledge about water safety, conservation techniques, and the importance of regular testing. By working with local schools, community centers, and policymakers, we advocate for stronger regulations and investments in water infrastructure.


4. Sustainable Water Solutions: Through partnerships with environmental organizations and local agencies, we explore innovative approaches such as rainwater harvesting, greywater recycling, and sustainable urban water management practices to ensure long-term access to clean water.



The TAPH20 initiative aligns with the Vallejo Project’s broader mission of improving health outcomes, environmental awareness, and youth engagement. By addressing water quality concerns, we contribute to a healthier, more resilient Vallejo.

the Benicia Amateur Radio Club will be running an amateur radio station with the ability for people to learn about radio and see how to get licensed!

This is a large format community art project sponsored by the Solano County Office of Education.  You can be part of art history by adding your input to the public drawing.