"While some people are afraid of spiders and scorpions, others are fascinated by these cool creatures, which are both part of the arachnid family. Readers broaden their knowledge of essential early biology concepts through captivating, well-researched, and accessible main text that is also age-appropriate. They learn about the habitats, life cycles, and eating habits of the creepy crawly creatures known scientifically as arachnids."--Publisher's description....

Describes the physical characteristics, habitat, and types of echinoderms.

Anesthetics come in many forms including creams that are rubbed into the skin, gases to be breathed in, and injections administered through a needle. They all are used to numb, dull, or stop pain for patients undergoing medical procedures. But how do they do that? Curious readers step into the operating room to find out the exact biological mechanisms that make anesthetics work. They'll explore the history of how they were developed. Side effects,...

Being able to see inside the body makes diagnosing internal conditions much easier and more accurate. The many body scans doctors can do include X-rays, CT scans, MRIs, ultrasounds, and PET scans. All these letters stand for something. Readers of this understandable narrative will find out exactly what those abbreviations are and how and why each scan is performed. Curious readers will be fascinated by real images from these different kinds of scans...