We started Mystery.org to create better explanations for every question children have about the world. We began with the 150 most common science questions that children ask teachers. We call this collection Mystery Science. Last year, more than 4 million children used Mystery Science in 50% of U.S. elementary schools. In an industry that is plagued by long sales cycles and high barriers to entry, we’ve sold thousands of schools without a single sales person. We’re backed by a great group of investors including Y Combinator, Learn Capital, and Reach Capital.