Most Popular Books by Clint Twist

Table of contents includes: Where does light come from? -- Why does it get dark at night? -- How do we see when it''s dark? -- How does light travel? -- What is sound? -- What makes sounds loud and quiet? -- How do we make sounds? -- Can we block out sound?

Explains what force and motion are and the various ways that objects can move faster or slower.

Kids are transported into the mysterious world of secret agents and espionage with this fun kit. Includes a 32-page "Spy Handbook," along with a 24-page paperback of "Secret Spy Codes," and accessories: a night vision monocular, sunglasses, a magnifier, a compass, a fingerprint brush, and much more. Consumable.

''Puzzle Quest Through Space'' uses a combination of games, puzzles and informative text to teach curriculum topics, and develop logic and deduction skills.

Delve into the secret lives of these intriguing creatures and learn about the fascinating things they do.

This exciting new series uses "X-ray" artwork to illustrate the underlying science or technology of familiar structures and systems. The books explore the workings of some key inventions and machinery, such as telecommunications and spacecraft, as well as the basic structures of the Earth, animals, and the human body. Stunning artwork supports the text and provides clear and compelling visual aids to learning. All titles have cross-curricular interest encompassing science, technology, geography, and history.

Examines what alcohol is, how it is made, why people drink it and become addicted to it, and how abuse of it can affect families.

From adders to the zygaspic quadrifons, this comprehensive dictionary includes an extraordinary range of snakes. With entries on the deadly black mamba, the little known urutu, the slug-eating snake and the eastern coachwhip amongst others, ''Snake Dictionary'' will have something to fascinate everyone.

Examines the characteristics of living things and looks at the difference between plants and animals.

Explore the world of reptiles and amphibians, discover how they live, how large or small they are, how they attack prey or escape from predators.

Immerse yourself in this interactive introduction to one of history''s greatest adventurers. Travel along the Silk Road to medieval China with Marco Polo as your guide. Meet the warlord Kublai Khan and sail through pirate-infested seas in search of riches beyond measure. Including booklets, foldouts, and maps, as well as excerpts from The Travels of Marco Polo, this beautifully illustrated volume illuminates the adventures of history''s greatest storyteller.

Dictionary that introduces young readers to over 100 animals that can inflict great harm.

Discusses various power generators including steam turbines, nuclear power, wind and water turbines and explains how they convert fuels to provide energy. Suggested level: intermediate, secondary.