I can be a theory or a fact, and I help explain the universe. I am often tested and proven, but I can change with new discoveries. What am I?

Category: Knowledge · Difficulty: medium

Hint: I rely on experiments and research.

Answer

Science

Explanation

Science is a systematic enterprise that builds and organizes knowledge through observation and experimentation.

This is a medium knowledge riddle — a moderate challenge for most people. The answer is Science.

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