An elementary textbook tracing the history and important people of Pennsylvania from the first Indian settlements to the present day.

Describes the discovery of Halley's comet and its historic significance. Also briefly discusses what is known of the composition of comets and their relationship to earth.

The best part of a young child's day is often opening a lunchbox and diving in. But how did all that delicious food get there? Who made the bread for the sandwich? What about the cheese inside? Who plucked the fruit? And where did the chocolate in that cookie get its start? From planting wheat to mixing flour into dough, climbing trees to machine-squeezing fruit, picking cocoa pods to stirring a vat of melted bliss, here is a clear, engaging look...

"Venture far beyond our solar system and discover the marvels of interstellar space. A wonder-filled poem and spectacular illustrations explore everything from dwarf planets and black holes to dark matter and brand-new stars"--

Simple text and color photographs explore a variety of occupations and the shoes that are worn for the particular jobs.

Describes how the Constitution was written, revised, approved, and enacted. Includes an outline of its articles and amendments.