ISTS meaning in Academic & Science ?

Answer: What is Intel Science Talent Search mean?

The Regeneron Science Talent Search, known for its first 57 years as the Westinghouse Science Talent Search, and then as the Intel Science Talent Search (Intel STS) from 1998 through 2016, is a research-based science competition in the United States for high school seniors. It has been referred to as "the nation's oldest and most prestigious" science competition. In his speech at the dinner honoring the 1991 Winners, President George H. W. Bush called the competition the "Super Bowl of science."

reference

Full Form	Category
Iowa Science Teaching Section	Academic & Science
Intel Science Talent Search	Academic & Science
International Sea Turtle Society	Academic & Science
International Society for Twin	Academic & Science
Iowa Science Teachers Section	Community
I Shot the Sheriff.	Community
Institute for Security Technology and Society	Computing
International Styling and Tuning Show	General
Information Security Talent Search	General
International Switched Transit Service	General
International Scholarship and Tuition Services	General
Ion Source Test Stand	General
International Speech Test Signal	International
International Society for Twin Studies	International
Integrated Software Training Solutions	Softwares
Initiative On Science and Technology for Sustainability	Technology