The IOI is the premier world wide high school computer programming competition. The USACO supports pre-college computing around the world through computer programming competitions and training materials. The USACO holds six Internet Contests during the academic year, and in the late Spring conducts the US Open, a proctored exam. Based on the results of these contests, 16 students are invited to an all-expense-paid training camp in the early summer, where 4 students are selected to be the US Team at the International Olympiad in Informatics (IOI). To access the current year's information, click on the link on the left-hand menu.

Homeschool Science Colorado (HSC) is a homeschool group organized to participate in Science Olympiad. Founded in the fall of 2008, Homeschool Science Colorado has built a reputation as a top competitor while emphasizing teamwork and integrity. Teams from HSC have consistently placed among the top ranked teams in the state of Colorado.

The Intel International Science and Engineering Fair (Intel ISEF) is the world's largest pre-college celebration of science. Held annually in May, the Intel ISEF brings together over 1,400 students from more than 40 nations to compete for scholarships, tuition grants, internships, scientific field trips and the grand prize: a $50,000 college scholarship. Science Service founded the ISEF in 1950 and is very proud to have Intel as the title sponsor of this prestigious, international competition.

ExploraVision is a competition for all students in grades K-12 attending a school in the U.S., Canada, U.S. Territory or a Department of Defense school. Homeschooled students are eligible to enter. It is designed to encourage students to combine their imagination with their knowledge of science and technology to explore visions of the future. Teams of students select a technology, research how it works and why it was invented, and then project how that technology may change in the future. They must then identify what breakthroughs are required for their vision to become a reality and describe the positive and negative consequences of their technology on society. Winning ideas have focused on things as simple as ballpoint pens and as complex as satellite communications. The student teams write a paper and draw a series of Web page graphics to describe their idea. Regional winners make a Web site and a prototype of their future vision.

Homeschool Science Colorado (HSC) is a homeschool group organized to participate in Science Olympiad. Founded in the fall of 2008, Homeschool Science Colorado has built a reputation as a top competitor while emphasizing teamwork and integrity. Teams from HSC have consistently placed among the top ranked teams in the state of Colorado.