Robert Snedden
Author
Language
English
Description
Explores the history of astronomy, discusses the importance of the invention of the telescope, and describes the contribution that space probes have made in the study of planets and stars. Examines comet encounters, ice dwarves, solar explorers, and exoplanets and discusses what questions space exploration may help explain. Provides word stations on most pages. Includes a timeline of space exploration including future predictions, color photos, a...
Author
Language
English
Description
"Explains how DNA is put together and how its code is read and acted upon by the cell to make proteins. This book explores genetic engineering and gene therapy as well as the highly controversial areas of stem cell research and cloning. Up-to-date examples are given, such as the recent use of blood from a baby's umbilical cord to provide stem cells for the testing of new drugs"--P. [4] of cover.
10) States of matter
Author
Language
English
Description
This book discusses how materials are used, and what changes occur during the solid, liquid, and gas states of matter.
12) Explor-a-maze
Author
Language
English
Description
Text, maps, and mazes follow the journeys of ten explorers, including Leif Erikson, Marco Polo, Vasco da Gama, David Livingstone, and Neil Armstrong and "Buzz" Aldrin.
18) Rocks and soil
Author
Language
English
Description
Explains basic concepts about rocks and soils, describes their composition and formation, and suggests activities and experiments to reinforce this information.