(Paperback)

(Hardback)

(Paperback)

In Earth's 4.5-billion-year history, more than 5 billion species have gone extinct, some of them at the same time. Hands-on activities, a fun narrative style, interesting facts, species spotlights, and links to primary sources combine to bring the subject of extinction to life in a fun and engaging way. Full color.

(Hardback)

Boneswhat are they good for Staying upright, for starters! In Skulls and Skeletons! With 25 Science Projects for Kids, readers ages 7 to 9 learn about the bones in their bodies and why we cant live without them. Hands-on science projects, essential questions, links to primary sources, and more get kids excited about taking a deep dive inside their own bodies!

(Paperback)

Boneswhat are they good for Staying upright, for starters! In Skulls and Skeletons! With 25 Science Projects for Kids, readers ages 7 to 9 learn about the bones in their bodies and why we cant live without them. Hands-on science projects, essential questions, links to primary sources, and more get kids excited about taking a deep dive inside their own bodies!

(Hardback)

An introduction to the world of the human brain and its effect on behavior covers such topics as brain anatomy, the science of memory, and the latest understanding about the role of lifestyle choices on brain health.

(Paperback)

An introduction to the world of the human brain and its effect on behavior covers such topics as brain anatomy, the science of memory, and the latest understanding about the role of lifestyle choices on brain health.