This is a richly illustrated three-page excerpt from my science fair workbook. It is a simple, follow-along guide, containing everything you (and your students) need to know to set up and care for a fresh-water aquarium for tropical fish.
An aquarium is actually a great tool to keep your class focused and allows for many, many quick experiments that involve all NGSS required skills. The best part is that an aquarium is cheap and way easier to set up than you think - oh and did I mention that this guide is FREE??
What are you waiting for?