Readers will learn about every step of the growth process through dual-level text and color photographs. PreK-Grade 3. Paperback. Have you ever wondered how a tiny little acorn becomes a towering oak tree? Pine trees are everywhere! But how does a little pine cone grow into a great big pine tree? The water cycle turns water from a river into raindrops in the sky, but how does it happen? Not many plants can grow in the desert, but a cactus can! How does a seed in the sand grow into a prickly cactus? Have you ever seen white fluff floating by in the wind? If so, it is probably cattail seeds finding a place to grow! Learn about every step of the growth process through dual-level text and color photographs. Mushrooms may look like tiny umbrella plants, but they are actually a type of fungi! How do they grow from spore to fungus?