Soils and Its Components
This organic material in soil consists of decomposed plants and animals
What is humus?
This term describes the movement of rocks and soil by natural forces like water or wind.
What is erosion?
Landforms like mountains, valleys, and canyons are created by natural forces such as this.
What is erosion (or wind, water, ice, and gravity)?
This fast-moving earth change involves water moving over dry land unexpectedly.
What is a flood?
Resources like soil and water that are found in nature are called this.
What are natural resources?
This is made up of humus, clay, sand, silt, gravel, and pebbles.
What is soil?
After rocks are eroded, they settle in a new location in a process called this.
What is deposition?
Scientists can learn about Earth's ancient past by studying preserved old bones or prints from animals that lived a long time ago, found in rocks.
What are fossils?
The sudden movement of Earth’s crust along a fault line is known as this
What is an earthquake?
Engineers design these structures to prevent water damage in flood-prone areas.
What are levees or dams?
This process involves the breakdown of rocks into smaller particles without changing their chemical composition.
What is physical weathering?
This thing can freeze and break rocks apart as it melts and refreezes.
What is water (ice)?
This shows the shape and height of land on a special kind of map.
What is a topographic map?
This natural event involves molten rock coming up through the Earth’s crust.
What is a volcano?
Buildings can be designed with this feature to withstand earthquakes.
What is earthquake-resistant (or structural reinforcements)?
These are the smallest particles in soil, found after silt in particle size.
What is clay?
These massive sheets of ice can shape landscapes by moving and depositing earth materials as they travel.
What are glaciers?
If contour lines on a map are close together, it shows this kind of hill.
What is a steep hill?
These slow processes shape the Earth gradually over millions of years.
What are erosion and weathering?
Engineers use knowledge of Earth’s processes to protect humans from these types of changes.
What are fast and slow earth changes?
This type of weathering involves chemical reactions that can cause rocks to dissolve or break apart, often accelerated by acid rain.
What is chemical weathering?
This is what happens to rocks when they move downstream in a river, turning into smaller pieces as they travel.
What is weathering?
This kind of weathering happens slowly, wearing down rocks over time.
What is erosion?
This type of earth change involves earth materials rapidly sliding down a slope.
What is a landslide?
Rocks, soil, and minerals are types of these, found in the ground.
What are earth materials?