Archive - Princeton STEM Expo (PSE)

2025 Competition Tests

Use these official practice tests from our inaugural year to prepare for the upcoming Princeton STEM Expo.

Grade 3

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Grade 4

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Grade 5

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Grade 6

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Grade 7

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Grade 8

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Individual Awards

2025 Podium Results

Top three finishers in each grade division from our inaugural Princeton STEM Expo.

Verified • September 27, 2025

3rd

Gold Albert Guo

Silver Jessica Zou

Bronze Claire Guan

4th

Gold Francis Li

Silver Carter Borja

Bronze Meera Saini

5th

Gold Aiden Pesnell

Silver Aayaan Saradana

Bronze Kaushal Patel

6th

Gold Claire Chen

Silver Callista Avery

Bronze Ethan Zhang

7th

Gold Xiangtong Liao

Silver Brandon Li

Bronze Krishav Prasad

8th

Gold Sabrina Avery

Silver Sophie Ma

Bronze Leonhard Chang

Awards Ceremony

2025 Ceremony Slides

Relive the highlights, sponsor shoutouts, and closing remarks from our inaugural awards program.

Google Slides deck ~30 slides

Event Moments

Photo Gallery Highlights

Flip through every photo from Po-Shen Loh’s keynote, testing rooms, workshops, and the closing ceremony.

Po-Shen Loh's Talk

Snapshots from the keynote and parent Q&A.

Professor Po-Shen Loh opening his talk

Families filling the auditorium

Po-Shen Loh presenting on stage

Close-up of Po-Shen Loh explaining a concept

Parent asking a question

Po-Shen Loh gesturing during explanation

Audience listening closely

Po-Shen Loh chatting after the session

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Testing

Focused competition rooms across grade levels.

Students settling into testing seats

Competitors opening their test packets

Students writing during the contest

Contender thinking through a problem

Rows of students taking the exam

Proctors monitoring the competition

Students working quietly during testing

Participants concentrating on solutions

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Workshops

Hands-on STEM labs, demos, and mini-events.

Students sharing ideas in a workshop

Workshop leader guiding a group

Small group discussion

Hands-on math activity

Volunteers assisting participants

Students building together

Hands raised during workshop

Team collaborating on puzzle

Students presenting their ideas

Parents observing workshop

Volunteers leading an activity

Robotics demonstration

Workshop room overview

Hands-on circuit activity

Volunteers answering questions

Students working at whiteboards

Workshop packed with participants

Students experimenting with materials

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Closing Ceremony

Celebrations, awards, and sponsor shout-outs.

Families gathering for the finale

Volunteers preparing the stage

Audience applauding

Families cheering for winners

Winners walking on stage

Organizers announcing results

Students receiving medals

Winners posing with certificates

Audience photographing the ceremony

Volunteers celebrating

Award recipients smiling

Students taking photos together

Volunteers waving from stage

Audience listening to closing remarks

Students cheering

Crowd shot from the back

Medalists lining up

Parents recording the ceremony

Presenters on stage

Awardees holding certificates

Group photo after awards

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Looking for Answer Keys?

Answer keys and detailed solutions are currently being refreshed for release. In the meantime, feel free to reach out if you needs clarification on any specific problem.