A fossil is the preserved remains or impressions of a plant, animal, or other organism from a past geological age. Fossils are typically found in sedimentary rock and provide important clues about the past.
How are Fossils Formed?
Fossils are formed through a process called fossilization. This occurs when living organisms or their remains are buried in sediment. Over time, the organic material is replaced by minerals, creating a fossil.
Types of Fossils
There are several types of fossils, including:
Body fossils: These are the actual remains of an organism, such as bones, teeth, or shells.
Trace fossils: These are evidence of the activity of ancient organisms, such as footprints, burrows, or coprolites (fossilized feces).
The student demonstrates an understanding of geochemical cycles by describing that most smaller rocks come from the breaking and weathering of larger rocks as part of the rock cycle.
The student demonstrates an understanding of geochemical cycles by recognizing the physical properties of water as they relate to the rock cycle.