sycamores

"Sycamore seed siblings Merwin and Louise must use their wits and imaginations to navigate a mysterious and often dangerous world, filled with talking plants, monsters, meteors, and the fear of never finding the right conditions to set down roots and become big trees"--Provided by publisher.

While playing in her tree house, Jesse is intrigued by a falling sycamore seed that slowly spins to the ground. But when she sees acorns falling fast directly down to the ground, she must solve the riddle while learning about propellers and windmills and using technology to understand aerodynamics.