Introduces colors and shapes with illustrations of shapes on die-cut pages that form animal faces when placed on top of one another.

This collection of mind-bending math puzzles concentrates on groups of five, with each riddle posing a problem that readers can solve by counting. Illustrations.

Have you ever wondered where paper comes from, who made the first known maps, or how the ancient Egyptians were able to build the pyramids? Would you like to make your own sundial, discover how to detect earthquakes, or learn to write in hieroglyphics? Are you looking for great ideas for your next science fair project? If you answered "Yes" to any of these questions, then Ancient Science is for you! From Greek lighthouses and Roman bridges to Chinese...