I wonder why

Illustrations and text answer questions about extinct and endangered animals.

Questions and answers introduce the clothing, food, weapons, religion, and other aspects of daily life in Ancient Greece.

Answers questions about space such as, "Are stars star-shaped, " "Which is the coldest planet, " and "What is a black hole.".

Combines solid information with quirky facts in a question and answer format.

Uses a question and answer format to teach children about prehistoric life, dinosaurs, evolution, and early humans.

Provides answers to questions children often ask about horses, and includes facts and figures about this favorite animal.

Questions and answers about various dinosaurs including which dinosaurs fished, did dinosaurs sing or swim, and which was the biggest dinosaur?.

Poses and answers thirty-one questions about mountains, such as: Can snow move mountains?, How high do birds nest? and Why do climbers wear spikes?.

Answers questions about extinct animals and animals in danger of becoming extinct, with a focus on reasons for endangerment and conservation efforts.