Practice measurement while learning about marine ecology and life in the ocean layers‎!‎ There are so many animals living in the vast oceans of our planet‎!‎ Not only does this title teach readers how to measure marine life by grams‎,‎ feet‎,‎ inches‎,‎ and other similar units of measurement‎,‎ but it teaches them how to measure ocean water using Celsius and Fahrenheit‎.‎ Using familiar and unfamiliar units of measurement in an unfamiliar territory challenges readers to expand their measurement and STEM skills‎.‎ Exciting images‎,‎ simple practice problems‎,‎ easy‎-to‎-read text‎,‎ clear mathematical charts and diagrams‎,‎ and an accessible glossary all help children advance their mathematical skills‎.‎