
A Gift of Dust: How Saharan Plumes Feed the Planet by Martha Breckenbrough, illustrated by Juana Martinez-Neal (Knopf Books for Young Readers, 40 pages, grades 1-5). A sunbeam shining through a window illuminates the dust in the air. Where does this dust come from? The author traces it back to a fish in an African lake that dies, eventually becoming a fossil, which the wind then breaks down into dust. This dust travels around the earth, providing nutrients to plankton, plants, and other living creatures in the water and on land. Dust can change the color of sunsets, dampen the speed of hurricanes, and be seen from outer space. Includes additional information and resources about dust.

I Rock: A Geology Tale by Kate Slivensky, illustrated by Steph Stilwell (Beach Lane Books, 40 pages, grades 1-5). Luis is presenting his senior citizen interview to the class when a rock stuck to the bottom of his shoe interrupts to ask the kids if they want to hear about someone who is REALLY old. The rock takes them on a journey going back four billion years where it started life deep inside the Earth. It has traveled all over the planet and experienced life in igneous, metamorphic, and sedimentary states. Concepts and vocabulary like plate tectonics, tsunamis, and erosion are introduced, as a small version of the rock narrates a timeline along the bottom of each page. The story concludes with Luis stepping on the rock, and the narrator declaring, “after four billion years, I’m proud to say that I’m here and I rock!” Includes more geology facts, a geology pop quiz, and a list of sources.
Although their styles are very different, both of these books do an outstanding job of instilling wonder by placing ordinary objects–dust and rocks–in the context of the vast expanses of time it has taken to create them. I Rock is filled with fun, humorous cartoons, while A Gift of Dust has sparkly dust-infused illustrations that could be worth of Caldecott consideration.