The Earth goes through many cycles. Including the water cycle, the nitrogen cycle, the carbon cycle, as well as several others. One of the most important cycles that the earth experiences is the movement of rock from one type of rock to another. We call this the rock cycle. The rock cycle includes sedimentary, igneous, […]
Dinosaurs first existed more than 200 million years ago. They ruled over Earth for about 155 million years. However, around 65 million years ago (when dinosaurs were at the height of their reign), an asteroid hit Earth in what is now Mexico’s Yucatan Peninsula. The impact caused significant damage to land and sea life, […]
Tyrannosaurus rex, tyrannosaurus, or t-rex for short, is one of the most popular dinosaurs. Fossil evidence depicts a creature who lived like other predatory animals who hunt in order to survive. Which is why paleontologists often assume tyrannosaurs were hunters who preyed on large prey like triceratops, and edmontosaurus. Tyrannosaurus was a bipedal carnivore with […]
Paleontology is the study of the history of life. Scientists who study paleontology are called paleontologists. Paleontologists use fossils to try to figure out three main things about fossils: Identity and origin of the fossil, the fossil’s environment, and what the fossil can tell us about the history of the earth. Because paleontologists are interested in […]
For hundreds of millions of years, the chemicals and elements found on Earth have remained relatively constant, or in other words, they have changed very little. The amount of one element or chemical in the Earth’s surface is practically the same as it was many millions of years ago. This consistency is one of the […]
The biosphere is defined as the sphere or area around the planet Earth where life exists. This zone of life is vast. Most lifeforms live on or near the surface of Earth. However, some live deep within the hydrosphere (oceans, lakes and streams), while others thrive in the depths of the lithosphere (solid portion of […]
The amount of water gas or vapor in the air varies greatly from location to location. In some areas, such as deserts, the amount of water vapor in the air can be almost zero. In other locations, such as in rain forests and above the oceans, the amount of water vapor in the air can […]
Scientists divide our home planet into three spheres. Each sphere is categorized according to its physical characteristics. These spheres are the Atmosphere, which is made of all the Earth’s gases; the Lithosphere, which is made up of all the Earth’s physical materials, such as rocks and soil; and the Hydrosphere, which is made up of […]
While compared to the rest of the Universe, the Earth is tiny, but to us its size is quite impressive. Because the Earth is so large compared to the lifeforms that live on it, it is difficult for those lifeforms to study and understand it. A small hedgehog lives his life carefully going from one […]
Where did the Earth come from? This is an important question. A question that helps us understand our own origin as a race of sentient, thinking beings. Did the Earth always exist? Has our planet spent eternity orbiting the Sun, quietly unchanging? Has the Earth always looked like it does today, with the same mountains, […]
