Primary Grades
Delta Explore Readers are nonfiction student books that build informational literacy skills through science content area reading and engaging photographs while promoting scientific inquiry at the primary grades.
In Delta Explore Floating and Sinking, students explore why different objects sink or float. They find out about the concept of buoyancy. They learn about matter and the physical properties of solids, liquids, and gases. Students also read about boat builders.
Download Teacher's Guide (1.7 MB PDF)