Science grade 3 (2010). Alternate title: How plants bring the earth to life. Using the sun as the narrator, photosynthesis is examined. The sun's energy melts glaciers, warms the land and the sea, and creates wind. All living things need the sun's energy to survive. Children will understand that photosynthesis is important to all life forms and that without plants, there would be no life on earth. Additional detail is provided at the back of the book and facts contained in the text,.