Feature on the surface of Earth such as a mountain, hill, dune, ocean, or river is a ________
Landform
What is weathering?
Weathering is the breaking down of rock into smaller particles (breaks it)
A river flowing across the rocky surface of the Earth could create what?
A canyon
Environment
The space, conditions, and all the living and nonliving things around an organism
Triangular landform where a river empties into another body of water
What is erosion?
Erosion is the movement of sediment from one location to another (takes it)
How could students best model the formation and movement of dunes?
Use straws or fan and blow piles of sand
Impact
Direct effect or change
A sand dune is a _______
Hills formed by wind blowing and depositing sand
Deposition is _______
The build up of land by the settlement of sediment and soil in a new location (drops it)
A delta is made of sediments deposited at the mouth of a river. A delta forms where the river meets the ocean because the ocean -
makes the river slow down and deposits sediment
Overpopulation
An increase in the number of individuals of a given species over what its ecosystem can sustain, often with both direct and indirect effects on other organisms in the ecosystem
A valley is ___________
A low area between higher areas
Which forces create landforms such as deltas, dunes, and canyons?
moving wind, water and ice
Students propped up one end of a tray of sand. They also set up a water jar and rubber hose as a syphon system, so that the water flowed over the sand. They observed how the moving water carried the sand downhill and made a small pile of sand at the bottom of the tray. When the students created the small pile of sand at the end of the flow of water, they modeled the formation of?
Delta
Carrying Capacity
The maximum population size that can be sustained by a given environment
A canyon is ______
A deep gorge in the surface of Earth formed by erosion of moving water and sand
Freeport, Texas, is built on a growing delta at the mouth of the Brazos River. The land on which Freeport is built continues to grow because the Brazos River –
Deposits new material on the delta
What is the difference in how a U shaped and V shaped valley is formed?
A U shaped is formed by a glacier and a V shaped is formed by a river
Population
All of the interacting members of the same species in an area