For the child who always asks "why?"-and the grown-up who loves that about them. Why does the Moon stay up? How can a giant whale live on tiny food? What does a rocket push against in space? Give their curiosity a whole world to explore. **Wonders Worth Knowing** brings together 54 beautifully illustrated discoveries for ages 7-12, from moving continents and distant planets to remarkable animals and the world inside the human body. Every discovery offers a quick answer to get started, a deeper explanation on the facing page, and a Wonder Challenge to think through. Follow a favorite subject, read together, or open anywhere a question catches your eye. Inside, young explorers will find: - **54 full-color discoveries** across Earth, space, living things, the human body, everyday physics, and inventions. - **Short answers and deeper explanations** for shared reading and independent exploration. - **54 thinking challenges and six investigations**, with reasoned explanations at the back. - **A glossary, topic index, and sources** to help them keep exploring. - **A gift inscription page** for a personal message they can return to. A birthday surprise, a grandparent's gift, or a book to share on an ordinary afternoon-each visit begins with a question and leaves room for another. **Open a book. Find your next wonder.** 164 full-color pages. Available in paperback and hardcover. Investigations use everyday materials and adult help; materials are not included.
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