Castro Valley High School teams (Onions and Garlic) won Second and Third places at Stanford Science Olympiad Invitational, which was held on January 20, 2024. Congrats!

Castro Valley Team Onion took 4th place at BirdSO in So Cal on Jan 13, 2024! Congrats! What a way to start the season!

Castro Valley High School Science Olympiad Club hosted its very first invitational. Approximately 39 teams (15 students per team) from all over from Northern California joined us on Saturday, Dec 9, 2023 . Congrats to all the winners and we hope to see you again next year!


CVHS SciOly team is back from Kansas! They didn’t click their heels; they clicked their shiny new medals! Congrats to team Xenon for bringing home the 7th place trophy back to Castro Valley High!

FINAL_2023_NatlTournPost_Release_052123.pdf (soinc.org)

Science Olympiad Nationals in Kansas


2022-23 CV Science Scholarship Winners

Congratulations! Ying-Tzu, Elise and Tony!

1st Place at BARSO (2023)
2nd Place at BirdSO (2023)
3rd Place at GGSO(2023)
3rd Place at BARSO (2022)

Castro Valley High School Teams
3rd Place at Golden Gate Invitational



Every year, our CVHS students are tasked to lead a Elementary Science Olympiad or a STEAM Summer Camp!

The summer of 2022, the CVHS SciOly ExComms and several student leaders lead a very successful hands-on in-person STEAM Summer Camp which included 12 amazing events such as Circuits, Crime Busters, Spaghetti Towers, Solar Systems, balloon cars, and more! Check out the photos from our camp below.

CVHS Summer CampeLeaders
STEAM Camp Leaders in action!

Castro Valley High Diamond Team came in 6th overall out of 38 teams! Congratulations!

NorCal State Competition Results!

Castro Valley Diamonds came in 3rd Place at the Regioanl Competition!

2022 Bay Area Regional Results

CVHS SciOly Members (minus a few)
2022 SciOly Club Offieres – Tony, Elise, Lauren, CeCe and Simon

Castro Valley High took First Place at High Desert Invitationals on February 5, 2022!


If you are interested in joining CVHS Science Olympiad teams, please join our mailing list.  

Science Olympiad Mailing List


CVHS Science Olympiad Club spearheaded CV’s first virtual summer STEAM camp for the CV Elementary School students.    Below are the CVHS STEAM TEAM Event Supervisors and the events they taught.

“Dylan had loads of fun and was very engaged. Thank you for organizing such a great event and patiently explaining to the kids.”

“Brandon loved it and said he would do it again. He liked that he had all the materials and was able to follow along. Organizers were very prepared and spoke very well. They took time to explain and also keep the kids engaged.”

“Naina loved it a lot. And kudos to the CVHS student teachers, the events were presented well and interesting to kids. And thank you to the head coaches. Wish this was longer 🙂.”

“Miles enjoyed both Gummie Bear Osmosis and Density Towers activities. “It was great!””




Congratulations to all the students!  What an awesome year we had!



Castro Valley Science Scholarship Recipients

Congratulations to 2021-22 Scholarship Recipients
Justin Lui , Lauren Lee and Kaitlyn Wong
(with Head Coaches Kathy & Eric Yao)

CVHS SciOly Club Officers

2022-23 Club Officers – Jad, Tomi, Tony, Elise and Simon

2020-21 Officers: Jackie, Lauren, Jeanette, Aparna & Rafi

2019-20 Club officers:  Jeanette, Josephine, Aparna, & Rafi (Jack & Yuri)

2017-18 Club Officers & Founders: Alec Dughi, Kristen Sun, Samantha Jewell, Shaeli Yao & Steven Yu (plus Jack & Yuri)

Congrats to CVHS!  2nd & 4th in Boomilever, 2nd in Sounds of Music, 2nd in Wright Stuff, 6th in Write it Do it!


The High School Science Olympiad is managed by the CVHS Science Olympiad Club that is operated by the Executive Committee (aka ExComm), a group of HS students who have been passionate about Science Olympiad since it was started in Castro Valley.  2023 State Champions!   Go Trojans!


Castro Valley High School

CVHS Science Olympiad Club spearheaded CV’s first Elementary Science Olympiad!

2018 CVHS Team — Regional Competition, March 10th, 2018, @ CSU, East Bay


Contact Us

We are independent program run by parents and not affiliated with the Castro Valley Unified School District.