Martha E. H Rustad

Your respiratory system carries oxygen throughout your body. Breathe it all in, and learn how your lungs take in clean air while getting rid of waste.

"Photographs and simple text introduce the features of the Moon, Earth's only natural satellite"--Provided by publisher.

Simple text and photographs introduce beginning readers to stingrays. Each audio-enabled VOX Book has an audio reader with complete narration permanently attached inside the front cover. It's ready for listening directly from the book--no CD, no computer, no tablet.

"Simple text and supportive images introduce beginning readers to Sea Urchins. Intended for students in kindergarten through third grade"--Provided by publisher.

An introduction to the physical characteristics, habits, and behavior of rays.

"Simple text accompanied by full-color photographs give an upclose look at wasps. Intended for kindergarten through third grade students"--Provided by publisher.

Discusses how weather changes in the fall and how the days get shorter closer to winter.