Ruth Musgrave

While reading this book, students will explore the Dry Tortugas National Park and learn about the research underway there. From monitoring sea turtles to studying coral reefs, scientists in this national park are making new discoveries and doing their part to protect its ecosystem. The Natural Laboratory: Scientists in National Parks series takes a look at the research and responsibilities of scientists working in U.S. national parks.

While reading this book, students will explore the scientific research underway at the Gates of the Arctic National Park. With no roads, businesses, trails, or campgrounds, this park offers scientists the opportunity to fly, hike, and raft to remote locations to study the animals and ancient lands. The Natural Laboratory: Scientists in National Parks series takes a look at the research and responsibilities of scientists working in U.S. national parks....

A book of silly jokes, including knock-knocks, tongue twisters, riddles, traditional question and answer jokes, and more.

Introduces dinosaurs, describing popular species and how to pronounce their names.

Pictures and names of vehicles of all kinds, for young children--