Science

Sedimentary rocks are formed by erosion. Sediments are moved from one place to another. Sediments are deposited in layers, with the older ones on the bottom. The layers…

Ernest Rutherford, Physicist was born August 30, 1871, in Spring Grove, New Zealand. At the age of 10, Rutherford was handed his first science book,…

Igneous rocks are formed by the cooling and hardening of molten rocks. There are two types of Igneous Rocks. Extrusive/Volcanic Rocks. When magma reaches the surface it…

Robert Andrews Millikan, Physicist was born March 22, 1868, Morrison, Illinois, U.S. He was graduated from Oberlin College in 1891 and obtained his doctorate at…

Principle objective of this lecture is to present on Rocks. A rock is a naturally occurring solid mixture of one or more minerals. Rocks are classified by how…

This lecture introduce on Pangea. Pangaea was a super continent at one time. Scientists use the similarity of rock types and fossil types that date to the same…

Marie Skłodowska Curie, Physicist and chemist was born in Warsaw in modern-day Poland on November 7, 1867. She used her spare time to study, reading…

The aim of this lecture is to present on Mid-Plate Hotspots. Whilst most tectonic activity is focused on plate margins, it is possible for earthquakes and volcanoes…

Transform Plate Boundaries are locations where two plates slide past one another. The fracture zone that forms a transform plate boundary is known as a…

Basic objective of this lecture is to present on Divergent Plates. Divergent boundaries in the middle of the ocean contribute to seafloor spreading. As plates made of…

General objective of this lecture is to present on Convergent Plates. In plate tectonics, a convergent boundary, also known as a destructive plate boundary (because of subduction),…

There are three kinds of plate tectonic boundaries: divergent, convergent and transform plate boundaries. Convergent – plates move toward one another. Divergent – plates move away from each other. Transform…