Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
38 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Canyon formation |
1st. There was flat rock and slowly moving river |
|
|
|
Canyon formation |
2nd. As river rushes between rock it gets in the cracks of the rock |
|
|
|
Canyon formation |
3rd. Later the water freezes in the crack overnight and does it over and over in many different places |
|
|
|
Canyons |
Canyons form when moving water cuts through the Earth's surface |
|
|
|
Sand dunes |
Sand dunes form when wind blown sand build up in one place |
|
|
|
Deltas |
Deltas form when River eroded sediments are deposited at the mouth of the river |
|
|
|
Weathering |
Breaking down of rock,frozen waters expand and rock cracks |
Slow changes |
|
|
Erosion |
Movement of sediment,water washes sediment away |
Slow Changes |
|
|
Deposition |
Drops sediment in a new place,rivers move sediment downstream |
slow changes |
|
|
volcanic eruptions |
Magma in the earth |
Fast changes |
|
|
Earthquakes |
Pressure increases until a quake happens |
Fast changes |
|
|
Landslides |
Water washes mud away |
Fast changes |
|
|
Canyon |
Wind, water |
Weathering, erosion |
|
|
Hoodoo |
Wind |
Erosion, deposition |
|
|
Delta |
Water |
Weathering, deposition |
|
|
Sand dunes |
Wind |
Erosion |
|
|
V-shaped Valley |
Water |
Weathering,erosion |
|
|
U-shaped Valley |
Ice |
Weathering,erosion |
|
|
Desert arch |
Wind |
Erosion |
|
|
Sea arch |
Water |
Weathering,erosion |
|
|
#1) how is a cliff formed? |
Years of waves crashing into the rocks and breaks pieces off over and over again |
|
|
|
#2) What causes mountains to have rounded tops? |
water, wind, or ice, breaking off pieces of rock |
|
|
|
#3) How are sand dunes formed? |
Sand dunes are created by sand anywhere caused by wind |
|
|
|
#4) How are canyons formed? |
First there was flat rock and a slow moving river as river rushes between rock it gets in the cracks of the rock later the water freezes in the crack overnight and does it over and over again in many different places |
|
|
|
#5) How can glaciers change Earth's surface |
By carving U- shaped valley |
|
|
|
Describe how wind affect sand dunes |
Wind shapes, forms, makes bigger and make them smaller |
Important |
|
|
Why can fossils of fish and shells be found in areas that are now deserts? |
The land used to be covered by ocean water |
Important |
|
|
What happens to a River Delta at the river continue to flow into the ocean |
The Delta will get bigger and eventually form new lands the river will make new river channels to flow in the ocean |
Important |
|
|
What effect does water and waves have on a coastal and beaches and cliffs? |
Coastline: waves will dig out the coastlines making it smaller jagged edges |
Important |
|
|
What effect does water and waves have on a coastline beaches and cliffs? |
Beach: moves sand on and off beach |
Important |
|
|
What effect does water and waves have on a coastline beaches and cliffs |
Cliffs: carves out caves, arches and breaks pieces of rock |
Important |
|
|
Describe in detail how a canyon is formed |
Canyons form when moving water cut through the Earth's surface over millions of years |
Important |
|
|
Weathered rock breaks into smaller pieces called__________ .When rocks are weathered in an ocean and the sediment is eroded to the beach ,we call that sediment ____________ |
Sediment /Sand |
Important |
|
|
Describe how a delta formed |
Water picks up sediment and dumps it at the mouth of a river |
Important |
|
|
What effect does ice have on land |
Ice will break off rock by frost wedging,carves out land and moves large rock |
Important |
|
|
What landform does a glacier carve out |
U-shaped Valley |
Important |
|
|
What can fossils tell us? |
Fossils can tell us what was happening on earth many years ago |
Important |
|
|
Whare do you find the oldest fossils? Closer to the top or buried deep |
Buried deep because sediment piles up |
Important |
