- Earle, Sylvia A. (1935- )
- Earth Science
- Earth, Interior Structure
- Earth, Planet
- Earthquake
- Eclipse
- Einstein, Albert (1879-1955)
- EIS (Environmental Impact Statement)
- El Niño and La Niña Phenomena
- Electricity and Magnetism
- Electromagnetic Spectrum
- Elles, Gertrude (1872-1960)
- Empedocles of Acragas, (CA. 492 B.C.-CA. 432 B.C.)
- Energy Transformations
- Environmental Pollution
- Eocene Epoch
- Eolian Processes
- Eratosthenes of Cyrene (276 B.C.-194 B.C.)
- Erosion
- Estuary
- Europe
- Evaporation
- Evolution
- Evolution, Evidence of
- Evolutionary Mechanisms
- Exfoliation
- Extrusive Cooling
