Erosion/ Weathering
What is erosion?
Erosion is the process by which soil and rock are removed from Earth's surface and transported to another location.
What is weathering?
Weathering is the process of breaking down rocks into smaller pieces.
What is sediment?
Sediment is small pieces of rock and soil that are carried by water.
What is one way humans can prevent erosion?
Humans can plan crops in ways that hold down soil
Humans can keep native plants around.
Where do earthquakes often occur?
Earthquakes often occur around the Pacific Ocean and near volcanoes and mountains.
What role do raindrops play in erosion?
Raindrops loosen and move soil, causing erosion
How can tree roots cause weathering?
Tree roots can grow into rocks and break them apart.
What forms when layers of sediment build up over time?
Sedimentary rock may form
How can terraces help with erosion?
Terraces hold water in place on each step and prevent soil from being washed away.
What geological feature forms when rock pushes against other rock?
Mountains form when rock pushes against other rock.
How does the speed of flowing water affect erosion?
The faster the water flows, the more erosion occurs
What is one way animals contribute to erosion?
Animals that burrow into the ground can loosen soil and cause erosion.
How do windbreaks help with sedimentation?
Windbreaks reduce wind speed and help keep soil in place.
How can the creation of footpaths from overuse affect erosion?
Footpaths can prevent plants from growing, contributing to erosion.
How do maps helps scientists study earthquakes and volcanos?
Maps allow scientists to visualize the locations of earthquakes, volcanoes, and mountains.
What is deposition?
Deposition is when the soil and sand carried away by water stop moving and settle in a new location.
Humans can clear land for farming, leading to soil erosion.
What happens when flowing water slows down?
The soil and sand it carries stop moving and can be deposited as sediment.
What are windbreaks?
Structures like trees or fences that block wind to prevent soil erosion.
What can happen when magma moves under a volcano?
What are two ways that plants can prevent erosion?
Plants can hold soil in place with their roots, and can block wind to reduce erosion.
What happens when particles collide with another object during weathering?
They can scratch the object, causing further weathering?
What is the role of the speed in water in sediment deposition?
Faster water can carry more sediment and deposit it at the bottom of rivers.
Native plants can help prevent erosion by holding soil in place.
What outlines Earth's tectonic plates?
Earthquakes, volcanoes, and mountains outline Earth's tectonic plates.