The Epistemic Insight ���Investigating Big Questions��� Discovery Bags contain a variety of scientific equipment and resources to help students ���think like a scholar���. This Investigation Card focuses on conducting an experiment with paper spinners to investigate ���why do spinners spin?���. It focuses on helping students understand the nature of science and encourages students to make observations of how changes to the spinner (such as adding paperclips or cutting the wings) can cause it to fall or spin differently.