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Fault Lines Explained: Types, Movement, and Earthquakes
Fault lines are cracks or fractures in the Earth’s crust where rocks have moved. They are one of the main reasons...
Epicenter vs Focus: What’s the Difference in Earthquakes?
When an earthquake occurs, scientists use two important terms to describe where it begins and how it affects the...
Seismic Waves Explained: P Waves, S Waves, and Surface Waves
Seismic waves are the vibrations that travel through the Earth when an earthquake occurs. These waves carry the energy...
Mineralogy & Petrology
Geological Applications of Radiometric Dating
Radiometric Dating: Introduction and Principles In the early part of the 20th century, scientists discovered...
Common Mineral Grains in Sandstones
Mineral Grains in Sandstones: A very large number of different minerals may occur in sandstones, and only the most...
Evolution of Organic Matter into Petroleum
Petroleum evolves from organic matter through heat, pressure, and time. Initially, buried material transforms into...
Geology & Earth Science
Sea Level Changes in The Geologic Past
Sea level has never been constant throughout Earth’s history. It has risen and fallen over geological time due to...
Topography of Bangladesh
Bangladesh, a South-East Asian country, is located at the lowermost reaches of the Bengal Basin. The Quaternary...
Resistivity And Its Factors
Resistivity: This is a fundamental physical property of metal in a wire. Though related to resistance, it is not the...
Paleontology
Classification of Fossils.
The classification of fossils follows Linnaeus' binomial nomenclature, using genus and species names. Fossils are...
What Are Microfossils? Their Groups and Importance
Microfossils are tiny fossils (0.001 mm to 1 mm) studied under a microscope. Found in marine and terrestrial...
Formation and Mode of Preservation of Fossils
Formation of Fossil: A fossil is the preserved remains or terraces of a dead organism. Fossils can be formed in...
Solar System
Neptune Planet: Size, Distance, Moons & Interesting Facts
Neptune is the eighth and farthest planet from the Sun in our solar system. It is known for its deep blue color,...
Uranus Planet: Size, Distance, Rings & Interesting Facts
Uranus is the seventh planet from the Sun and one of the most unusual planets in the solar system. It is known for its...
Saturn Planet: Rings, Size, Distance & Interesting Facts
Saturn is the sixth planet from the Sun and the second-largest planet in the solar system. It is best known for its...