I found this to be a very useful tool for teaching Biology. There are many puzzles and activities covering different Biology units, including genetics, physiology, and cell biology. Students enjoy the variety and the puzzles go along with most typical high school Biology textbooks.

Unfortunately I had to read this book for a college class. Although Capra uses the umbrella of science, his approach is anything but scientific. The book sank considerably in my estimation when I saw that the first footnote credits Al Gore for documenting that the world is on the brink of destruction. Perhaps our world really is in sorry shape if we are willing to recognize a career politician as a credible scientific source.

Capra claims that it is imperative that the planet shift over to his "ecological" world view, but he provides little in terms of accurate information or factual data to support his position. This book is an emotional appeal to a romanticized view of the Earth, with a typical lack of appreciation for human ingenuity and ability to adapt.

Better choices for those who actually prefer the facts about the state of the world are "The Skeptical Environmentalist: Measuring the Real State of the World" by Bjorn Lomborg or "Hard Green: Saving the Environment from the Environmentalists" by Peter Huber. If you are a new age dreamer who doesn't care about facts, this book is for you. If you seek the "scientific understanding" that Capra's subtitle promises, look elsewhere.

This is one of the better Voyager episodes I have seen, very intriguing and thought-provoking, with non-stop action. The concept of space-time is explored, along with the possibilities of parallel universes.

...The illustrations opened up discussions about what life was like in the United States in the 1800's. The familiar Lincoln lessons about working hard and succeeding in the face of adversity are well-presented.

The day this book arrived, my daughter read it on her own cover to cover. It opened up a great dialogue regarding the composition of the Earth. I sometimes have trouble getting her to read regular science books, but this one made it fun to learn about geology and geography.