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Incoming Resources
- Heat
- The circulatory system, Joseph Midthun, Samuel Hiti
- Division
- Matter and its properties, Joseph Midthun, Samuel Hiti
- The digestive and urinary systems, Joseph Midthun, Samuel Hiti
- Subtraction
- The nervous system, Joseph Midthun, Samuel Hiti
- Animal life cycles, text by Joseph Midthun ; art by Samuel Hiti
- The cell cycle, text by Joseph Midthun ; art by Samuel Hiti
- Fractions
- Numbers
- Addition
- Plant and animal adaptations, text by Joseph Midthun ; art by Samuel Hiti
- Light, Joseph Midthun, Samuel Hiti
- The respiratory system, Joseph Midthun, Samule Hiti
- Matter and how it changes, Joseph Midthun, Samuel Hiti
- Plant life cycles, text by Joseph Midthun ; art by Samuel Hiti
- Cells to organ systems, Joseph Midthun, Samuel Hiti
- Gravity, Joseph Midthun, Samuel Hiti
- Plant structure and classification, text by Joseph Midthun ; art by Samuel Hiti
- Multiplication
- The endocrine and reproductive systems, Joseph Midthun, Samuel Hiti
- Traits and heredity, text by Joseph Midthun ; art by Samuel Hiti
- Fighting sickness, Joseph Midthun, Samuel Hiti
- Animal structure and classification, text by Joseph Midthun ; art by Samuel Hiti
- The skeletal and muscular systems, Joseph Midthun, Samuel Hiti
- Animal behavior, text by Joseph Midthun ; art by Samuel Hiti