Katie Coppens Libri

Acadia Greene wants answers. What happened to the frogs she usedto see at her favorite local pond? Why do leaves change color in the fall, andwhy don't evergreen needles do the same? What is the water cycle, and what istranspiration? How do time zones work, and why does the sun set at differenttimes in different places within a single zone? How do germs infect us? Acadiadoesn't mean to do science, but shehas questions and her parents refuse to simply give her the answers. "Conductan experiment," they tell her. "Use the scientific method." So Acadia makeshypotheses, designs experiments, analyzes data, and draws conclusions. Acadiadoes science.

Fascinating astronomy facts delivered in a lighthearted, illustrated, Q & A format. Space facts from an astrophysicist, brought down to earth by a middle school teacher--these are answers to kids' real, wacky, smart questions. Light, space, stars, galaxies, planets and more, all explained with accuracy and humor, and accompanied by images from across the Universe.

"What is Earth's history, including the history of life? Where is Earth headed, and what can we do? A middle school science teacher addresses these questions with a friendly narrative voice and a focus both on how science is done and the diverse people who do it. Women like Mary Anning and Rachel Carson get equal attention to men like James Hutton and Georges Cuvier. Present problems of the Earth discussed include not only climate change but human-caused extinctions, plastic pollution, and invasive species. A final section suggests things kids can do to make a difference, from changing their behavior as consumers to recycling, energy use, and voting."--Provided by publisher.

An introduction to geology of the Earth discusses the different types of rocks, the rock cycle, and plate tectonics, using cake as a model to explain the various concepts.