Concrete, , North Star Editions, Trudy Becker,Technology/How Things Work-Are Made,JUVENILE NONFICTION, juvenile nonfiction; educational books for grades 3 and 4; children ages 8 and 9; how things are made; how it works; how products are created; manufacturing goods; how buildings are made; sidewalks; bridges; dams; portland cement; kilns; Hoover Dam; climate change; greenhouse gases,, Momentous Materials, United States, en-UShttps://northstareditions.comjuvenile nonfiction; educational books for grades 3 and 4; children ages 8 and 9; how things are made; how it works; how products are created; manufacturing goods; how buildings are made; sidewalks; bridges; dams; portland cement; kilns; Hoover Dam; climate change; greenhouse gases, [BLURB],[CITY],,books, ebooks, biblet, Book2look