De natura

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Discusses the discovery and escavation of King Tutankhamen's tomb and the myth of the curse that seemed to afflict those involved in the tomb's exploration.

It's full of everything that makes Fortnite the best game, including stats, gameplay tips, online etiquette and a guide to everything that's changed in Chapter 2, plus a full guide to staying safe online. Find out the best dances and emotes, choose your perfect Fortnite pet, and discover what the pros know.

Learn how zookeepers at the National Zoo keep the animals healthy and happy. This Spanish book features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.