How strong is it? : a mighty book all about strength /
by Ben Hillman.
- New York : Scholastic, 2008.
- 48 p. : col. ill. ; 30 cm.
- What's the big idea? .
Includes an index.
Presents a visual guide to items and animals of various strength and substance, including such examples as spider webs, bulldozers, black holes, lasers, icebreakers, and the Hercules beetle.