How come?

Planet earth

ScienceQuestions and answersJuvenile literatureMiscellaneaEarth (planet)Science, miscellaneaEarth sciencesEarth (planet), juvenile literature

Answers to approximately 135 of kids' science questions about people, animals, and the natural world, such as why cats purr and why our fingers wrinkle in water.

For young readers

Book data: Open Library