Explore the wonders of space in this Spanish nonfiction reader! This book uses vivid images, fascinating facts, and easy-to-read text to delight and engage readers while sharing information about space and the ways people have studied astronomy.  Meer

Light and sound help us recognize objects and noises! This fascinating Spanish nonfiction reader teaches students how vibrations, radiant energy, wavelength, frequency, amplitude, reflection, optics, and sound waves help us see and hear.  Meer