Gr 2–5—Mixing no-brainers such as "Could you survive if you jumped up just before a falling elevator hit the ground?" (No) with such compelling enquiries as "Why is snow white?" and the prize-worthy "Do plants poop?" this set of science Q & A's offers nontechnical but specific and clearly reasoned explanations for a wide range of common and uncommon natural phenomena. Each volume features four thematically related queries per spread, which are posed and answered alongside brightly colored, sometimes telling photos. "Can you really sit on a lily pad?" Yes, as the picture proves. Some questions don't have tidy answers ("When will we run out of oil?"), thus making fine springboards for discussion and further research.