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Presents one hundred and one facts about the human body, from common diseases and viruses to facts about the circulatory system, reproductive organs, the brain, and the changes of adolescence.
Can you imagine what our lives would be like after we run short of vital fossil fuels? What would happen to our transportation, to the way we produce and distribute food, and to the many machines and gadgets we use? How would people, communities, and countries respond to shortages of energy? This book traces the possible consequences of a global event on this scale, with ideas and evidence based on similar scenarios that are a part of fact and fiction.
Can you imagine what people's lives would be like after a nuclear disaster? How frightened would people be, and how would they respond to the unseen dangers? What might be the impact on our food, our health, and public order? This book traces the possible consequences of a global event on this scale, with ideas and evidence based on similar scenarios that are a part of fact and fiction.
Why do tigers have stripes? Do they choose to have them, or is that just how they are? Adaptation and Survival explains what is meant by the fitness of an organism and shows how adaptations improve a plant or animal's chances of survival to have offspring. It tackles common confusions about the science and shows how topics are relevant to the reader.
It's hurricane season. Scientists have detected a storm at sea, and it's growing. Learn about how these monster storms form, how scientists track them, and how people respond to their destruction.
Demolished houses. Snapped trees and overturned cars. These are just a few examples of the destruction tornadoes can leave behind. With winds reaching more than 250 miles per hour, tornadoes are one of the most violent forces of nature. Get an inside look at how tornadoes form, the devastation they cause, and the cutting-edge technology forecasters are using to help keep us safe.