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Truth - The earth is CONSTANTLY CHANGING. 

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Truth - The earth is CONSTANTLY CHANGING. 

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Second Law of Thermodynamics states that anything organized will eventually become disorganized over time.

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the Cenozoic era, or the system of rocks deposited during it.

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The period of geologic time between Hadean Time and the Phanerozoic Eon, from about 3.8 billion to 540 million years ago. During the Precambrian Eon, which is divided into the Archean and Proterozoic, primitive forms of life first appeared on Earth.

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the era of geologic time from about 251 to 66 million years ago. The Mesozoic Era includes the Triassic, Jurassic, and Cretaceous Periods and is characterized by the development of flying reptiles, birds, and flowering plants and by the appearance and extinction of dinosaurs.

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First form of life appeared - Precambrian.

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First form of life appeared - Precambrian.

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Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multi celled life-forms almost four billion years later.

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The Mesozoic Era includes the Triassic, Jurassic, and Cretaceous Periods and is characterized by the development of flying reptiles, birds, and flowering plants and by the appearance and extinction of dinosaurs.

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Fossil - the preserved remains of an organism. 

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Fossil - the preserved remains of an organism. 

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the preserved remains of a prehistoric organism or is slang for someone or something that is old and outdated.

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How fossils are formed - living things die and their remains are covered by sediments.

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How fossils are formed - living things die and their remains are covered by sediments.

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Fossils are formed in a number of different ways, but most are formed when a plant or animal dies in a watery environment and is buried in mud and silt. Soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.

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Absolute Dating - the age when the rock is formed.

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Absolute Dating - the age when the rock is formed.

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he process of determining an age on a specified chronology in archaeology and geology.

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the branch of science concerned with fossil animals and plants.

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The Holocene is the current geological epoch. It began after the Pleistocene, approximately 11,700 years before present. The Holocene is part of the Quaternary period.

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Epochs, Periods, Eras, Eons - smallest to greatest time frame.

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Epochs, Periods, Eras, Eons - smallest to greatest time frame.

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From largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.The time before the Phanerozoic is usually referred to as the Precambrian and is usually divided into the three eons shown. The Phanerozoic is subdivided into three major divisions: the Cenozoic, Mesozoic, and Paleozoic Eras.

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The principle that in a group of stratified sedimentary rocks the lowest were the earliest to be deposited.

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A fossil formed when an animal, plant, or other organism dies, its flesh decays and bones deteriorate due to chemical reactions; minerals gradually enter into the cavity, resulting in a cast, also called a mold fossil, which is in the general form of the original organism.

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igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth's surface. The magma, which is brought to the surface through fissures or volcanic eruptions, solidifies at a faster rate.

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Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water

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Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.

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a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.

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form when minerals replace all or part of an organism. Water is full of dissolved minerals. It seeps through the layers of sediment to reach the dead organism. When the water evaporates, only the hardened minerals are left behind.

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Cenozoic - the time we are currently in.

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Cenozoic - the time we are currently in.

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the Cenozoic era, or the system of rocks deposited during it and the era we are currently in.

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Eras - Paleozoic, Cenozoic, and Mesozoic.

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Eras - Paleozoic, Cenozoic, and Mesozoic.

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a point of time from which succeeding years are numbered, as at the beginning of a system of chronology

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a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it

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Sedimentary Rock - fossils forms in this layer.

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Sedimentary Rock - fossils forms in this layer.

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rock that has formed through the deposition and solidification of sediment, especially sediment transported by water

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the preserved remains of a prehistoric organism or is slang for someone or something that is old and outdated. An example of a fossil is the preserved remains from a prehistoric organism that have been preserved inside rock.

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How old is the Planet Earth - Paleontologist believe it is 4.6 Billion Years Old

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How old is the Planet Earth - Paleontologist believe it is 4.6 Billion Years Old

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How old is the Planet Earth - Paleontologist believe it is 4.6 Billion Years Old

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History of rock and fossils - Geologic Time Scale

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History of rock and fossils - Geologic Time Scale

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Geologists use fossils to divide Earth history into named intervals, and they use the rate of radioactive decay to determine the numeric age of those intervals. ... In the youngest epoch (Holocene), the fossils are very similar to plants and animals living today.

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Relative Dating of rock layers tells us that the deeper we dig - the older the rock gets.

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Relative Dating of rock layers tells us that the deeper we dig - the older the rock gets.

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the science of determining the relative order of past events (i.e., the age of an object in comparison to another), without necessarily determining their absolute age

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Fossil is an impression left by the original organism - mold 

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Fossil is an impression left by the original organism - mold 

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A mold is the impression and void that an organism or organism's body or body part leaves in the sediment.A cast is made of different material than a mold. Both casts and molds are types of fossils. Sometimes the mold and cast are found together, although molds are more than casts.

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is a type of trace fossil, a trackway made by an organism.

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is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.

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Organisms buried in sediment may decay or dissolve away leaving a cavity or mold. If the space is subsequently filled with sediment, an external cast can be made. Molds and casts are three dimensional and preserve the surface contours of the organism.

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states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.

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defined in the authoritative Glossary of Geology as "the fundamental principle or doctrine that geologic processes and natural laws now operating to modify the Earth's crust have acted in the same regular manner and with essentially the same intensity throughout geologic time, and that past