In partnership with Fathom Reads, the Core Knowledge Foundation is proud to offer our entire library of our Core Knowledge Science (CKSci) Student Readers as digital products.

These  29 titles offer a wide range of features, such as:

  • The entire text read aloud in English and/or Spanish, with the ability to switch back and forth instantaneously between both languages
  • Engaging activities for students to complete as they read
  • Prompts that check students’ comprehension
  • Embedded third-party videos and resources that deepen or extend understanding around domain content

Purchase Core Knowledge eBooks through Fathom Reads

Titles included in CKSci ebook library:


  • Pushes and Pulls
  • Needs of Plants and Animals
  •  Changing Environments
  • Weather Patterns
  • Our Five Senses

Grade 1

  • Sun, Moon, and Stars
  • Plant and Animal Survival
  • Exploring Light and Sound
  • Simple Machines
  • Human Body Systems

Grade 2

  • Properties of Matter
  • Organisms and Their Habitats
  • Exploring Land and Water
  • Electricity and Magnetism
  • Human Cells and Digestion

Grade 3

  • Investigating Forces
  • Life Cycles, Traits, and Variations
  • Habitats and Change
  • Weather and Climate

Grade 4

  • Energy Transfer and Transformation
  • Investigating Waves
  • Structures and Functions of Living Things
  • Processes That Shape Earth
  • Using Natural Resources for Energy

Grade 5

  • Investigating Matter
  • Energy and Matter in Ecosystems
  • Modeling Earth’s Systems
  • Protecting Earth’s Resources
  • Astronomy: Space Systems

Purchase Core Knowledge eBooks through Fathom Reads