Show:
Weathering
Fresh Water 1
Fossils and Geologic Time
Fresh Water 2
Erosion
100
a process that includes rain, wind, chemicals, and can be mechanical or chemical
What is weathering?
100
materials carried by a river or stream (rocks, soil)
What is load?
100
A dinosaur bone is an example of this
What is a fossil?
100
The continuous movement of water from the ocean to the atmosphere, to the land and back to the ocean
What is the water cycle?
100
the process by which wind, water, ice or gravity transport soil and sediment from one location to another
What is erosion?
200
An animal breaks down a rock by scratching or digging (which type of weathering?)
What is mechanical weathering?
200
Water cools in the clouds?
What is condensation?
200
when a whole species of plants or animals dies out forever
What is extinction?
200
a small stream that runs into a larger stream or river
What is a tributary?
200
a method to maintain the fertility of the soil by protecting the soil from erosion and nutrient loss
What is soil conservation?
300
Carbon from decayed organisms gets into water and creates an acid that breaks down rocks. (which kind of weathering?)
What is chemical weathering?
300
Rain, snow, sleet...(part of the water cycle)
What is precipitation?
300
a print left in a rock of a living thing- like a leaf, or a footprint
What is a trace fossil?
300
An area of land that is drained by a water system
What is a watershed?
300
the removal of substances that can be dissolved from rock, ore, or layers of soil due to the passing of water
What is leaching?
400
A rock gets wet, freezes and then breaks apart. (which kind of weathering?)
What is mechanical weathering?
400
water molecules heating up and rising into the air (part of water cycle)
What is evaporation?
400
a type of fossil that forms when sediments fill in the cavity left by a decomposed organism
What is a cast?
400
the path that a stream or river follows
What is a channel?
400
the layer of rock beneath the soil
What is bedrock?
500
the breaking down of rocks by lichens or moss
What is chemical weathering?
500
a fan-shaped mass of material deposited (deposition) at the mouth of a stream
What is a delta?
500
a mark or cavity made in a sedimentary surface by a shell or other body
What is a mold? (for a fossil)
500
the boundary between drainage areas that have streams flowing in the opposite directions (like a mountain)
What is a divide?
500
a rock formation that is the source of a soil
What is parent rock? see page 288