Exhibitors 2026

Updated March 3, 2026 | 106 Exhibitors

Exhibitors provide interactive and hands-on activities targeting 4th-8th graders, and accessible to the entire family, to explore, learn, and connect around science, technology, engineering, and math.

Exhibiting is free!

Exhibitor applications are due by January 25, 2026.

Exhibitor (sorted alphabetically)	Activity	Inquiry Question	Language
404 Found Code	Code a Micro:Bit CuteBot!	What is programming? What is a robot, and how does it work? How can I use coding to control a Micro:Bit-powered robot?	English
501st Legion - Golden Gate Garrison	Lightsaber	How would you create a toy lightsaber out of a plastic straw, watch battery, and an Light Emitting Diode (LED)?	English
AT&T	Build the tallest structure by using only toothpicks and marshmallows	How can the Sticky Squishers build the tallest, wobbliest, giggliest tower before it goes splat?	English
AspireED	3 Activities total (1) Spy Science: Invisible Ink (2) Sunlight Magic: UV Beads (3) Tiny Creatures, Big Magnification	(1) How does invisible ink work? (2) What's the science behind UV beads? (3) How can a microscope help us see life up close?	English, Spanish
Buck Institute for Research on Aging	The Buck's goal is to increase human healthspan. Meet our scientists and check out some fun science experiments!	How can we all live healthier, longer and avoid dealing with multiple diseases of aging as we get older?	English, Spanish
Bureau of Land Management	Tread Lightly with the Bureau of Land Management	What is Tread Lightly and how do we use its principles to recreate responsibly on public lands?	English
California Association of Science Educators (CASE)	Shockingly Fun Experiments with Static Electricity! - ¡Experimentos Electrizantemente Divertidos con Electricidad Estática!	How does friction produce static electricity? - ¿Cómo la fricción produce electricidad estática?	English, Spanish
California Department of Water Resources	Power Shot!	Learn about hydroelectric power generation.	English, Spanish
California Local Section of the American Chemical Society (CalACS)	Into the Woods with Chemistry	What secrets bring life to the forests?	English
California State Parks	Experience the wildlife that exists in our parks and open space areas in California.	Have you ever seen or touched a wild animal?	English
Carnegie Science	What makes your greens green?	What color are plants inside? Why is spinach green?	English
Charles M. Schulz Museum	Discover the science of animation	How do we make still images appear animated?	English
Children's Museum of Sonoma County	Paper Pressure Rockets!	What does it mean to be aerodynamic?	English, Spanish
City College of San Francisco's Engineering Club	CCSF's Paper Airplane Launcher	Which type of paper airplane flies better when launched by motorized paper airplane launchers?	English
Civil Air Patrol	Aerospace and STEM Hands-on Activities	Do you like flying?	English
College of Marin Mathematics Engineering Science Achievement (MESA) Program	Balloon Magic: Chemistry in Action	Can a chemical reaction make a balloon inflate all by itself?	English, Spanish
CometBoTs, FTC Robotics Team #14493	Learn about FIRST Tech Challenge and this season's game, DECODE	Have you ever wondered how fun it would be to design, build, and program a robot to compete in robot games? Come see!	English
Denali Therapeutics	Unlocking the mysteries of the brain and treating brain diseases.	What does the brain look like and how does it function?	English, Spanish
Dominican University of CA AED (Med) & GSE (Chem)	Learn to Fire Bend, Make Milk an Everyday Item, and Save a Life with Dominican Honors Societies!	How can bubbles allow humans to hold fire without burns? Can milk be manipulated to become more than just a drink?	English
Donald Laird (Diet Coke and Mentos Reaction Show)	Diet Cola and Mentos Reaction Show	What happen when diet cola and Mentos candy mix, and why?	English
Elsie Allen High School Healthcare Pathway	Hands to the Rescue: Save a life with CPR	What are the most common barriers to bystander CPR, and how can public education address these challenges?"	English, Spanish
Environmental Resource Solutions, Inc.	How to measure a tree and identify tree age? Tree structure. Tools of forestry.	What is forestry? How important is forestry to our environment?	English
Expanding Your Horizons, Sonoma County	Expanding Your Horizons, Sonoma County	What can I be when I grow up?	English
FIRST Robotics - Playing At Learning	Engineering in Action: FIRST Robotics (FLL & FTC)	How do students apply science, technology, engineering, arts, and math to real-world challenges through robotics?	English
First Tech Federal Credit Union	SAVE, SPEND, SHARE - Design a piggy bank	What are you saving for?	English
Fort Ross Conservancy's Coastal Academy	Sonoma Coast Wildlife	Living below the surface ! What traits have marine mammals evolved to survive and thrive in the ocean?	English
Girl Scouts of Northern California	Lights, Plants, Engineering, Oh my! Explore all these and more with Girl Scouts!	How can we make the world a better place through science?	English
Honoré Farm and Mill	Wheat! Wait, what?	How does a grain of wheat become bread? / ¿Cómo se convierte un grano de trigo en pan?	English, Spanish
International Bird Rescue	Does This Bird Need Help? Spot the Signs!	What clues tell us when a bird needs help and when it doesn’t?	English
Kaiser Permanente	Take a minute for your heart	How can understanding your heart help you thrive?	English
Keyyo Face Painting – Color Lab & Face Art	Color Lab: Mixing Science & Face Art	What happens when we mix primary colors to create new shades?	English, Spanish
Kiwanis Club of Santa Rosa	Send a Postcard to Space.	Draw your vision for the earth on a postcard & Blue Origin will launch it into space & return it to you with a special stamp.	English
Laguna de Santa Rosa	Vernal Pool Awareness: “Vernal Pools: Nature’s Temporary Wetlands.”	Why are vernal pools important? What animals rely on vernal pools to survive? Do you know where a wetland or vernal pool is located in your community?	English, Spanish
LandPaths	"I notice, I wonder, it reminds me of" - foster curiosity, observation, and connection!	What do you notice? What do you wonder? What does it remind you of?	English, Spanish
Lions Club	Free Vision Screening	The importance of healthy eyes	English
Lucasfilm Ltd./Industrial Light & Magic	Behind the scenes of Lucasfilm's Visual Effects	How does science play a role with visual effects for movies and television shows?	English
MHS Science Department	Shark explorers: What's inside?	What are the shark's adaptations to help it survive in the ocean?	English
Make:	Crafty Circuits	How do electronic circuits work?	English
Marin/Sonoma Mosquito & Vector Control District	Up Close with Mosquitoes	How has close viewing of mosquitoes taught us how to best fight them?	English
Medtronic	Science Meets Medicine: Explore the Heart, Create the Future	How can we use engineering to design medical devices that alleviate pain, restore health, and extend life?	English
Milo Baker Chapter - California Native Plant Society	Tending the Land	What can Indigenous communities teach us about keystone species that are crucial to the health of local ecosystems?	English
Mobile Climate Science Labs	Ten Discovery Lab Stations for 2026. New ones plus returning favorites.	Which of our lab stations are your favorites? Have you experienced all 4 of the fundamental forces of the universe before?	English, Spanish
Mobile Maker Club	Sun-Powered Motion: Creating Art with Solar Energy!	How can sunlight be transformed into art and energy through solar power?	English
New York Life- Insurance and Investments	The League of Smart Savers- Money Masters of Tomorrow	What problem-solving hero will you be?	English
NorCal Bats	Live Bats - The Winged Wonders	How do bats help keep people healthy?	English
NorCal FTC Champions - Mecha Mantises	Tackling Today with Technology	How do you approach challenges that can be solved with robotics successfully?	English
NorCal Mars Society	Driving Robots on Mars	Could you drive a robot rover on Mars?	English
North Bay Bear Collaborative (NBBC)	Bears in our woods! Learn about bears in the North Bay	Where are the bears in the North Bay? What do they eat? How many are there?	English, Spanish
Our Water Our World	Pest or Pal - learn about beneficial bugs commonly found in the garden	Did you know that over 90% of the bugs we see in the garden are beneficial	English
Pacific Coast Air Museum	Climb aboard a US Navy Blue Angle F-4	What special equipment enable aircraft to land & launch off aircraft carriers?	English
Pacific Gas and Electric Company (PG&E)	Powering Safety and Innovation: Hands-On STEM with Future-Forward Energy Solutions and Cutting-Edge Technologies	How do gas and electric safety and engineering innovations transform energy systems?	English
Parker Electronic Motion & Controls	How do electric motors & drives work?	How do we use electricity and magnets to make motors work? See 5 different types of motors & drives running	English
Pepperwood Preserve	Scat ID, Wildlife Pictures, Coverboards	Can you identify local wildlife based on evidence? How can we be good neighbors to wildlife?	English, Spanish
Petaluma Wildlife Museum	Wildlife Warriors	How can we preserve the environment to keep wildlife safe?	English
Point Blue Conservation Science	Come learn about the three P's of marine food webs: poop, puke, and plankton!	What can we learn about the health of our oceans from the prey of seabirds, sea lions, and whales?	English, Spanish
Point Blue- STRAW	Exploring our Watershed Model!	Do you know how we use our Watershed everyday??	English
Quest Forward Middle and High School	Catapult Chaos: Build, Launch, Compete!	Can you design a catapult to launch a ping pong ball straight into the hoop?	English
Rebel Legion Endor Base	Led sabers	Want to learn how lights work?	English
Recology Sonoma Marin	Waste Sorting Game	What bin do I use?	English
River Otter Ecology Project	River Otters: Nature’s ambassadors	Why do we call river otters ambassadors from the waters?	English
SRJC Chemistry Club	Color Chemistry	What can color tell us about chemistry?	English
SRJC Physics Club	Haptic Hand Experience	How accurately can electronics detect things? What kind of physics do they utilize?	English
Santa Rosa Junior College Biology Club	Participate in the "Insects Matching Game". Watch fresh animal lungs inflate. Use animal teeth to figure out what they eat. Use microscopes to get up close and personal with insects, fungi & flowers.		English
Saving Hearts Foundation	Don’t be a bystander! Learn how to save a life with a hands-on CPR/AED demo.	What happens to the body when the heart stops, and how can your actions keep someone alive?	English
Scouting America	Outdoor Adventures while learning skills, developing leadership, and making friends	Are you ready for adventure?	English
Sea Otter Savvy	Be Sea Otter Savvy!	What is a sea otter, how are sea otters ecosystem superheroes, and why are they no longer in northern California?	English
Solar Schoolhouse	Discover the Magic of Solar Cells	How can we harvest sunshine to power a motor or pump using solar cells?	English
Sonoma Academy STEMinism	“Pop! Fizz! Wow! A Balloon Powered by Chemistry" and “From Berry to Biology: Discovering Strawberry DNA."	Q1: How can a chemical reaction inflate a balloon without using air?	English
Sonoma County Beekeepers Association	Get the Buzzzz on Pollinators	Why are Bees and other Pollinators so crucial to life?	English
Sonoma County Hazmat Team	Hazardous Chemical Safety Dos & Don'ts for all ages presented by the Sonoma County Hazmat Team.	Household Hazardous Chemicals Sinker or Floater/Oil Spill Response/Chemistry for Neutralizing Acids/Smells & Colors	English, Spanish
Sonoma County Library	It's a Bug's Life	What textures do you observe?	English, Spanish
Sonoma County Office of Education	Making Wellness!	How can making and STEAM support our wellness?	English
Sonoma County Radio Amateurs	Radio Science	Discovering the science of amateur radio. Also demonstrating, how to build simple electrical circuits	English
Sonoma County Regional Parks	Explore an Oak Woodland Neighborhood	What is a keystone species? Lets explore an oak tree!	English, Spanish
Sonoma Ecology Center and North Bay Bear Collaborative	Watershed Play Table - make water flow through the watershed!	How does water flow through the watershed? How do we keep it clean? Learn about protecting the streams and fish.	English, Spanish
Sonoma Federal Credit Union	Common Cents	How would you sort and count these coins to find the total quickly?	English
Sonoma State University Chemistry Club	Drip Drop: A Leaky Faucet Demonstration	How does dry ice CO₂ form bubbles, and how does water on our hands affect their stability?	English
Sonoma State University EdEon STEM Learning	Sonoma County to Mars: It's all Rover!	How does computational thinking and computer coding build and control a Mars Rover?	English
Sonoma State University Nursing Student Association	Germbusters!	How well do you really wash your hands?	English
Sonoma State University, Center for Environmental Inquiry & Bio Outreach	Walk Through the Watershed	How do different habitats in our watershed support so many cool animals and plants?	English, Spanish
Sonoma Water	Aquatic Macro Invertebrates and Endangered Salmon	How do insects indicate the health of a watershed?	English, Spanish, Materials available in Spanish
Stewards of the Coast and Redwoods	How large is a redwood of your age? Redwood rings and ecology. Rocks Rock - geology tells a story of the pulse of the planet. tide pool touch table	What can we learn from tree rings? What are some of the different qualities or rocks? What are ways that animals adapt to live in tidepools?	English
Stewards of the Coast and Redwoods & NBSDD	Skulls and Tracks	Can you match the animal skull to the animal's track?	English
Teacher Appreciation Center	We recognize the wonderful work that you do, and will have “goodie bags” for classroom teachers!	How can we appreciate what our educators do for youth?	English
Technology High School Medical Club	Snack Attack!	How does environment determine an animal's diet?	English
Tesla	Come experience Tesla’s with a Demo Drive or Ride along!	Explain one thing you know or have heard about Tesla’s	English
The Animal People / Lyon Ranch Therapy Animals 501(c)(3)	Meet the Live Animal Ambassadors of Lyon Ranch Therapy Animals	How do animals adapt to their environments?	English
The Bird Rescue Center	Fill the Bill	How do bird adaptations define their food source?	English
The Marine Mammal Center	Marine Mammal Trivia	What makes a marine mammal a marine mammal and what can I do to help them?	English
The Robert Ferguson Observatory	Solar Observing, Comet Cooking and other fin scientific activities related to astronomy!	What can sunspots and solar prominences tell us about the Sun’s activity and its impact on Earth?	English
The Thinker Teacher	Play video games and robots made by kids	Ever wonder if you could code your own video game or build your own robot?	English, Spanish
The Whiting-Turner Contracting Company	Creating the Built Environment	How do Human activities shape our surroundings?	English
The Xerces Society	ID This Bug!	What is this insect and what role does it play in our world?	English, Spanish
UC Berkeley RadWatch & DoseNet	Exploring our Radioactive World	Where do we encounter radiation in our environment and how do we "see" it?	English
UC Cooperative Extension Sonoma County Viticulture	Grape Juice Tasting Comparison (non-alcoholic)	Why do we grow mostly one species of grapevine? Why does grape flavored candy not taste like normal grapes?	English
UC North Bay Fire Science Program	Burn Boards and Ecology Printing	How is fire behavior affected by different factors such as fuel, weather, and topography?	English
UC Sonoma 4-H	Create With Nature Play + Build with Legos	What patterns and shapes do you notice when you arrange natural materials in new ways?	English, Spanish
UC Sonoma County Master Gardeners	Seeds: Containers of the Future	How do seeds move through the world? How do they sprout? What do they need?	English
VIAVI Solutions	The Science of Light	What is light? Light plays a critical role in our daily lives meeting the needs of our 21st century world.	English
Veolia Water	How Do Microscopic Organisms Keep Our Water Clean	How Do Microscopic Organisms Keep Our Water Clean	English
Walker Creek Ranch	Explore the ecosystems of the West Marin hills!	To be determined	English
We Save the World	Nature Sleuths! How many of these natural objects found in Sonoma County can you identify?	If this object could tell its story, what would it say about Sonoma County eco-systems?	English
WildCare	Owl Pellet Dissection	What can you learn about an animal from examining the remains of a meal?	English
Zenni Optical	Vision Pioneers: The High-Tech Science of Sight	How fast does your brain see? Test your reflexes and master the light spectrum with the Zenni Vision Pioneers!	English
Zero Waste Sonoma	Recycling Plinko Game	Each section of the game provides questions on the recycling programs in Sonoma County.	English, Spanish
i9 Sports Santa Rosa	The Physics of the Perfect Goal: Projectile Motion Lab	Can you use physics to find the perfect angle for a winning goal?	English