April 13, 2024 | Big Bang Catholic STEM Fair

Get ready for our sixth annual

Big Bang Catholic STEM Fair!

April 13 at Visitation High School in Mendota Heights


The registration portal is open from
February 4 to March 10, 2024.

Big Bang Catholic STEM Fair Schedule

8:30AM-9:00AM | Registration and project set up for 6th-8th grade students

9:00AM-9:30AM | Opening remarks to 6th-8th grade students (Main Stage)

9:30AM | Doors open to the public

9:30AM-10:00AM | Registration and project set up for 3rd-5th grade students

9:30AM-11:00AM | Judging of 6th-8th grade student projects 

10:00AM-10:30AM | Opening remarks to 3rd-5th grade students

11:00AM-12:00PM | Lunch break (Visitation High School concession stand or bag lunch)

11:30AM-12:00PM | Judging of 3rd-5th grade student projects

11:45AM-12:30PM | Activities

1:00PM-1:30PM | Presentation (Main Stage) 

1:30PM-2:00PM | Awards and Dismissal 

Why a C-STEM competition? 

To provide an opportunity for our Catholic school students to showcase their advancements in the areas of science, 

technology, engineering and math. 

What is Big Bang all about?

Watch this video to find out more!

Who can enter? 

Students in grades three through eight attending a Catholic elementary school in Minnesota.  Students will compete in one of two age groups:

  • Grades three through fifth grade
  • Grades sixth through eighth grade

Groups of up to two students are allowed.  An unlimited number of students from each school can enter this event.  

How to enter:

  1. Talk to your science teacher and come up with a great idea.
  2. Review the registration packet HERE! for tips and guidelines to enter your best project!
  3. Review the judging rubric in the packet and practice.
  4. Visit the registration portal at the top of this page from February 4 – March 10 to enter. You must have a parent or guardian’s contact information with each student entry. 

Who can help with the project? 

It is expected that these C-STEM competition projects are primarily the work of the student. They may ask parents, teachers, siblings, and friends for help, but the student should be the one in charge at all stages of the project.  

Projects designed by the teacher, primarily driven by parents, or performed by following a set of instructions in a kit ordered online are not appropriate for this competition.  

What are the Prizes? 

Category 1: 3-5 Grades

  • 1st Place: $1,000, a trophy, and $500 for your school
  • 2nd Place: $500, a trophy, and $500 for your school
  • 3rd Place: $250, a trophy, and $500 for your school
  • 4th Place: $100 and a trophy
  • 5th Place: $100 and a trophy

Category 2: 6-8 Grades

  • 1st Place: $1,000, a trophy, and $500 for your school
  • 2nd Place: $500, a trophy, and $500 for your school
  • 3rd Place: $250, a trophy, and $500 for your school
  • 4th Place: $100 and a trophy 
  • 5th Place: $100 and a trophy 


Eligibility or administration questions?

Contact Sharon Wilson at

Project or contest questions?

Contact Kelsey Irizarry at



Sponsored By:

In Partnership With:

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Catholic Schools Center of Excellence