This text looks at the forces that cause volcanic eruptions and earthquakes and the methods used to predict when and where these devastating events will occur. Projects included show how magma flows, the dangers of volcanic gases and much more.
Nancy absolutely adores stars. She loves how they sparkle in the sky, and she can even name the constellations. When she finds out her class will visit the planetarium she is ecstatic—that's a fancy word for excited. But when it starts to rain Nancy is afraid she might not be able to see the stars. Will the rain keep Nancy from watching stars sparkle?
Isabel felt invisible. Nobody noticed her brand new rucksack, her shiny new bike, or that she could tie her shoelaces. And, worst of all, when Isabel's baby sister Amy arrived, nobody noticed Isabel. Isabel learns that her family do notice her and that she is a wonderful big sister.
Apakah kamu tahu bahwa hujan, ombak, angin salju, dan es dapat menubah permukaan bumi? mereka dapat membentuk lembah, gundukan pasir, dan gua. Bacalah tentang kekuatan alami dari erosi dan bagaimana mereka mengubah permukaan bumi.