(3) 4-6 Science Concepts series. These well-organized books explain and illustrate basic principles of physics and chemistry. After defining types of energy, Forces considers related concepts such as work, simple machines, fluids, motion, and gravity. Matter includes states of matter, atoms, elements, and reactions. Sidebars concern questions, historical material, and further applications, while captioned photos, drawings, and charts illustrate the texts. Reading list, websites. Bib., glos., ind. Review covers these Science Concepts titles: Forces and Motion and Matter.

Reviewer: Frieda F. Bostian

(3) 4-6 Science Concepts series. These well-organized books explain and illustrate basic principles of physics and chemistry. After defining types of energy, Forces considers related concepts such as work, simple machines, fluids, motion, and gravity. Matter includes states of matter, atoms, elements, and reactions. Sidebars concern questions, historical material, and further applications, while captioned photos, drawings, and charts illustrate the texts. Reading list, websites. Bib., glos., ind. Review covers these Science Concepts titles: Forces and Motion and Matter.

Reviewer: Frieda F. Bostian

(3) 4-6 Science Concepts series. Adaptation explores adaptation and evolution, extreme habitats, seasonal and night adaptations, the predator/prey balance, and human adaptations. Growth considers the growth process, animals with and without skeletons, human and plant growth, and future trends as a result of medical technology. Clear organization, engaging anecdotes, and generally good photos and diagrams are strengths of the volumes. Reading list, websites. Bib., glos., ind. Review covers these Science Concepts titles: Adaptation and Growth and Development.

Reviewer: Frieda F. Bostian

(3) 4-6 Science Concepts series. Adaptation explores adaptation and evolution, extreme habitats, seasonal and night adaptations, the predator/prey balance, and human adaptations. Growth considers the growth process, animals with and without skeletons, human and plant growth, and future trends as a result of medical technology. Clear organization, engaging anecdotes, and generally good photos and diagrams are strengths of the volumes. Reading list, websites. Bib., glos., ind. Review covers these Science Concepts titles: Adaptation and Growth and Development.

Reviewer: Frieda F. Bostian

(3) 4-6 Science Concepts series. This is a good discussion of some of the factors controlling global warming. The authors describe, in considerable detail, various biological and geological cycles that are known to affect our climate and make clear some of the difficulties in considering these quantitatively. Well-placed and -captioned photographs and diagrams, as well as informative sidebars, enhance the volume. Reading list, websites. Glos., ind.

Reviewer: Harry Clement Stubbs

(3) 4-6 Science Concepts series. In this well-designed volume, the authors summarize astronomers' present understanding of the structure of the universe and Earth's place in it. Included in the discussion are details about the observations and the reasoning that led to this current picture. Photographs, illustrations, and diagrams, are effectively captioned. Sidebars contribute additional information. Reading list, "Space Age" timeline, websites. Glos., ind.

Reviewer: Harry Clement Stubbs

(3) YA Science Concepts series. These two series books lucidly explain definitions, structure, function, reproduction, and disorders of the smallest units of life. Color photos, photomicrographs, diagrams, and sidebars add facts and visual interest. Both books end with a look at the future possibilities and controversies that current research promises. Bib., glos., ind. [Review covers these Science Concepts titles: Cells and DNA.]

Reviewer: Gail Hedges

(3) YA Science Concepts series. These two series books lucidly explain definitions, structure, function, reproduction, and disorders of the smallest units of life. Color photos, photomicrographs, diagrams, and sidebars add facts and visual interest. Both books end with a look at the future possibilities and controversies that current research promises. Bib., glos., ind. [Review covers these Science Concepts titles: Cells and DNA.]

Reviewer: Gail Hedges

(3) 4-6 Science Concepts series. While some attention is paid to ways in which humans measure time, this informative book focuses on natural demarcations in time--daily, monthly, and seasonal--and the rhythms that humans and animals experience that align with (or interrupt) these periods. Additional factual information can be found in text boxes throughout. Color photographs illustrate the text. Bib., glos., ind.

Reviewer: Danielle J. Ford

(3) 4-6 Science Concepts series. These detailed discussions of two areas of the earth sciences are well-written and organized. Both start with the basic principles and underlying theories of their disciplines (energy in the atmosphere and plate tectonic theory) to place catastrophic events such as earthquakes, volcanic eruptions, and storms in context. Color photographs and too-small diagrams accompany the texts. Bib., glos., ind.

Reviewer: Danielle J. Ford

(3) 4-6 Science Concepts series. These detailed discussions of two areas of the earth sciences are well-written and organized. Both start with the basic principles and underlying theories of their disciplines (energy in the atmosphere and plate tectonic theory) to place catastrophic events such as earthquakes, volcanic eruptions, and storms in context. Color photographs and too-small diagrams accompany the texts. Bib., glos., ind.

Reviewer: Danielle J. Ford

(3) 4-6 Science Concepts series. In clearly written text, the authors define kinetic and potential energy, then cover the principles of sound, light, heat, magnetism, and nuclear reactions. The last chapter is devoted to alternative sources of energy that may power our futures. Helpful color photographs and diagrams accompany the text. Bib., glos., ind.

Reviewer: Danielle J. Ford

(4) 4-6 Science Concepts series. Published spring 1998.

Reviewer: Elizabeth Howard

(4) 4-6 Science Concepts series. Published spring 1998.

Reviewer: Elizabeth Howard

(4) 4-6 Science Concepts series. Published spring 1998.

Reviewer: Elizabeth Howard

(4) 4-6 Science Concepts series. Published in spring 1998. Because of the varying complexity of the topics covered, this series is somewhat uneven. The books on evolution and photosynthesis, two key concepts in biology, stay close to the stated topic, while the books on symbiosis and food chains, more peripheral subjects, cover a broader range of material. Captioned color photographs accompany each clearly written text. Bib., glos., ind.

Reviewer: Elizabeth Howard