In a question-and-answer format this book tells why flies don't fall off ceilings, why kangaroos have pouches, what camels store in their humps, and many other animal facts.
In a question-and-answer format this book tells which plant has the largest seeds, why some trees have needles instead of leaves, if spinach really make you strong, and many other facts about plants.
In a question-and-answer format this book tells what rock is the hardest, why magnets pick up some things and not others, how Velcro works, and many other facts about materials.
In a question-and-answer format this book tells how Saturn got its rings, why planets don't bump into each other, why people think aliens are green, and many other facts about space.
In a question-and-answer format this book tells what makes you hiccup, what causes sleepwalking, why people get seasick, and many other facts about the human body.
