What happens to trash if it is thrown into a river? Where does garbage in a lake come from, and how can it harm animals that live there? Poisoned Rivers and Lakes introduces young readers to the issues of river and lake pollution due to the dumping of garbage, chemicals, and other things into our planet's waterways. It also gives students plenty of ideas for ways that they can be part of the campaign to help keep our rivers and lakes clean and safe for the future. Filled with information perfectly suited to the abilities and interests of an early-elementary audience, this colorful, fact-filled volume includes grade-appropriate activities and experiments, critical-thinking questions, and fascinating fact boxes to keep the pace lively and interactive.