When her abuelo is injured at the local landfill, second-grader Sofia is determined to transform the dangerous Mount Trashmore into a park, taking on City Hall in the process.

Sofia is put in charge of overseeing a fair election for a class pet, but first the Questioneers must learn about elections and good journalism--and remember that being a community matters most. Includes facts about the Delano Grape Strike, presidential elections, journalism, and the importance of voting.

"When Rosie Revere's Uncle Ned gets a little carried away wearing his famous helium pants, it's up to Ada and friends to chase him down. As Uncle Ned floats farther and farther away, Ada starts asking lots of questions: How high can a balloon float? Is it possible for Uncle Ned to float into outer space? And what's the best plan for getting him down?"--

"Called upon to investigate thirteen suspicious incidents in Stain'd-by-the-Sea, young Lemony Snicket collects clues, questions witnesses, and cracks every case"--

Examines the history Erie Canal, telling how it opened the passage to the West and provided new opportunities for trade and expansion.

In the early 1800s, many black slaves in the southern states began to risk their lives to gain freedom in the North. They escaped from plantations with no money to buy food and no maps to help them find their way. They could travel only at night. If runaway slaves were caught, they could be beaten to death. Still, many slaves tried to flee. Slave catchers chased them, but the runaways seemed to disappear into thin air-or through a secret underground...

Questions and answers explore various aspects of stars and our solar system, including the sun, planets, moons, comets, and asteroids.