Medir la velocidad (Measuring Speed)

Provides information on the tiny reptiles, including their use of color as a defense, their climbing skills, and their ability to grow back a missing tail.

Biography of Benjamin Franklin, a great American inventor, statesmen and diplomat as well as one of the founding fathers of the United States of America. In graphic novel format.

Think you'd like to be a fire fighter? Learn about the special equipment fire fighters use, their role in community safety, and their lives at the station. This book features a comprehensive timeline of the history of firefighting from its origins in ancient Rome through firefighting practices of today plus vocabulary related to fire fighters and fire safety.

If we could take a trip to the center of the Earth, what would we find? In this amazing book readers can do just that with the help of a special ship that can handle the extreme heat and pressure deep beneath Earth’s crust. Digging through a few miles of the crust is just the start of the nearly 4,000-mile journey to Earth’s core. Readers might be surprised to find that not all of the trip is through solid rock, as the intense heat does strange and amazing things to the material that makes up our planet!

Describe el trabajo hecho en la estación de policía, el personal, los procedimientos y programs de los oficiales de policía.