Fossils
The remains or traces of past life, usually found in sedimentary rock.
What is a Fossil?
The breaking down of rock on Earth's surface into smaller pieces.
What is weathering?
The process by which weathered rock is picked up and moved to a new place.
What is Erosion
What property is the least reliable for mineral identification?
What is Color?
Evidence of an animal's activities.
What is a fossil?
Dead organisms' hard body parts fossilize in this type of rock.
What is a Sedimentary Rock?
Sand dunes normally shift position through the action of
What is wind?
Flood waters moving soil from one location to another
What is Erosion?
Name two different descriptions of a non-metallic luster.
What is glassy, earthy & dull?
Minerals can be identified according to their properties. Alan finds a mineral that is shiny. In which category does Alan's mineral belong?
___________ = shiny
nonmetallic = dull, glassy
Metallic
Fossil A is found in a rock layer above a layer containing Fossil B. Which fossil is probably older?
What is Fossil B?
Huge sheets of ice that move slowly over land.
What is glaciers?
What is a runoff? How does it contribute to erosion?
The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. Glaciers, snow, and rain all contribute to this natural runoff. Runoff also occurs naturally as soil is eroded and carried to various bodies of water.
Nonliving, solid material that are formed in nature and made of crystals.
What is a mineral?
Scientists find bones and put them together to form skeletons of these gigantic prehistoric beasts.
What are dinosaurs?
Scientists who study fossils are called
What is a paleontologists?
Weathering over long periods of time breaks rock into ____________ pieces. (larger or smaller)
What is smaller?
The sudden movement of rocks and soil down the side of a hill because of gravity and rain.
What is a landslide?
How are rocks DIFFERENT from minerals?
Rocks are made up of one or more minerals, but minerals are not made up of rocks.
What are the two main changes that can morph rocks?
What are heat and pressure?
Insects and spiders sometimes trapped in sticky tree sap which hardens into hard, smooth material.
What is amber?
Name a force of nature that can cause BOTH weathering and erosion.
What is
Wind
or
Moving Water
The difference between weathering and erosion is: a. weathering causes a quick change in landforms and erosion causes a slow change in landforms. b. weathering breaks rocks into sediments and erosion moves sediment from one place to another.
What is B?
Pyrite or fool's gold is a common mineral. Like many minerals, scientists can identify pyrite by its internal repeating pattern, also called its
Crystal Structure
Water can weather rock by: A. eroding soil B. by freezing and melting
What is freezing and melting?