This document provides guidance and examples for developing effective inquiries for junior students. It recommends that inquiries be relevant, purposeful, doable, open-ended, and thought-provoking. Examples of inquiry questions at different levels of thinking are provided using the story of Horton Hatches the Egg. Additional guidance is given around choosing topics, predicting outcomes, and evaluating options using a PMI (Plus, Minus, Interesting) framework. Sources of information and assessing reliability are also discussed.