Siblings Evan and Jessie must solve the mystery of a missing cherished family treasure while coming to terms with their beloved grandmother's unsettling behavior.

Using infographics can make learning about physics fun and easy.

Sophie Foster is back in the Lost Cities-but the Lost Cities have changed. The threat of war hangs heavy over her glittering world, and the Neverseen are wreaking havoc. The lines between friend and enemy have blurred, and Sophie is unsure whom to trust. But when she's warned that the people she loves most will be the next victims, she knows she has to act. A mysterious symbol could be the key-if only she knew how to translate it. Every new clue seems...

"The story of cat Jacob Tibbs, runt of the litter, and his exploits on the high seas as a ship's mouser"--

[He had] a fever that hovered around 104 degrees. His skin turned yellow. The whites of his eyes looked like lemons. Nauseated, he gagged and threw up again and again . . . Here is the true story of how four Americans and one Cuban tracked down a killer, one of the word's most vicious plagues: yellow fever. Journeying to fever-stricken Cuba in the company of Walter Reed and his colleagues, the reader feels the heavy air, smells the stench of disease,...

Through the eyes of her family and friends we see the young Rachel as she explores nature and overcomes obstacles to write about harmful chemical practices and launch the global environmental movement. Written in blank verse.