Children don t have to be botanists-in-training to discover the message of this book: All plants are interesting. Even the weeds. Young readers are sure to be intrigued by the wide variety of shapes, sizes, and functions in flowers, fruit trees, and all sorts of other flora. "How Does a Plant Grow?" will inspire children to be newly alert to the many wonders of the plant world, from how seeds sprout to why leaves turn to the light to the vital roles of stems and roots. "How Does a Plant Grow?" is part of the I Wonder Why book series, written to ignite the curiosity of children in grades K 6...

While building a soapbox racing car, a pair of friends provide an easy-to-understand lesson in how simple machines are all around us, making our work more efficient. Michael and Luci show readers that a broom is a lever, nails are wedges, and a screwdriver is both a lever and a wheel and axle. The two also prove that curious children can be just like scientists, making observations and using how and what questions to explore physical science principles they encounter all the time. "Michael s Racing Machine" is part of the I Wonder Why book series, written to ignite the curiosity of children...