The Grade 2 Student Edition covers units such as Plants and Animals, Habitats, and Our Earth.

Building Skills: Math provides additional mathematics skills practice related to the science content in each chapter. It includes five basic categories of math skill review: Number Sense; Algebra and Functions; Measurement and Geometry; Statistics, Data Analysis and Probability; and Mathematical Reasoning.

Student Editions offer hands-on activities, science content, and high-interest special features that address National and State Science Standards. Dynamic visuals and an engaging text style make learning fun. The Grade 5 Student Edition covers units such as A Diversity of Life, Ecosystems, Earth and Its Resources, and Weather and Space.

Student Editions offer hands-on activities, science content, and high-interest special features that address National and State Science Standards. Dynamic visuals and an engaging text style make learning fun. The Grade 5 Student Edition covers units such as A Diversity of Life, Ecosystems, Earth and Its Resources, and Weather and Space.

Guideline 12: If the Results of Previous Studies Are Inconsistent or Widely Varying, Cite Them Separately