Blastoff! discovery. Inventions that changed the world

Vaccines have been used for more than 1,000 years! The first vaccine was made to protect people against smallpox. Today, vaccines help protect people from many diseases and illnesses. This title walks readers through the history of vaccines, how they work and impact our lives, and what we may expect in the future. Features highlight an inventor and a specific vaccine, show how many vaccines work, and more. Readers will have a new appreciation for this life-saving invention!.

"The Internet has changed the way more than half the world's population communicates and accesses information. The invention dates to the Cold War, when its purpose was to provide security. Today, the Internet does so much more! Readers will learn about the development of the Internet, how it impacts life today, and what it may look like in the future. A profile introduces an Internet pioneer, a diagram shows how the Internet works, and fun facts offer interesting trivia. Open the cover to a world of information!"--Provided by the publisher.

"Smartphones put a camera in just about everyone's pocket, but it hasn't always been so easy to take a snapshot. The 18th century brought a new innovation that allowed people to . . . preserve a moment in time. This . . . title explores how the camera was invented and how it continues to develop"--Provided by publisher.

Engaging images accompany information about cameras. The combination of high-interest subject matter and narrative text is intended for students in grades 3 through 8.