Heather Kissock

Did you know that baby bald eagles have gray feathers? These feathers turn brown as the eagles get older. Find out more in “Bald Eagles”, a Little Backyard Animals book.

Did you know that caterpillars turn into butterflies? They make this change inside a hard shell. Find out more in “Butterflies”, a Little Backyard Animals book.

Did you know that black bear cubs are born in a den? They stay with their mother, who feeds them and keeps them warm. Find out more in “Black Bears”, a Little Backyard Animals book.

Sydney is Australia's largest city. It is known for its scenic harbor. Sydney's Harbour Bridge stretches across the harbor, linking the northern and southern parts of the city. Find out more about this fascinating city in Sydney, a title in the World Class Cities series.

Paris is the capital city of France. Many people come to Paris for its art. The city is home to the Louvre, the world's largest art museum. Find out more about this fascinating city in Paris, a title in the World Class Cities series. World

Did you know that some harvesters can harvest 30 acres of crop in an hour? That is about the size of 23 football fields. Learn more about these machines in Harvesters, one of the titles in the Farm Machines series.

Glacier National Park sits across the border from Canada's Waterton Lakes National Park. Together, Glacier and Waterton Lakes form the Waterton-Glacier International Peace Park. Find out more in Glacier, one of the titles in the National Parks series.

Visiting a museum is a way to learn about the past. Museums help people understand what life was like many years ago. They also show how the world has changed over time. Find out more in Museums, one of the titles in the Field Trips series.

Pushing the roundabout makes it spin. Pulling the roundabout makes it stop. Learn more about what is pushed and pulled at the playground in At the Playground. This title is part of the Pushes and Pulls series, which has been developed for children ages 5 to 7.

Did you know that there is no air in space? Space suits are filled with air so that astronauts can breathe. Find out more in Astronaut, one of the titles in the Discovering Space series