Weathering, Erosion and Deposition
This process breaks rocks into smaller pieces.
Weathering
This dark material comes from decayed plants and animals and adds nutrients to soil.
Humus
This high landform rises steeply above the surrounding land.
Mountain
This landform is lower and usually more rounded than a mountain.
Name one force of nature that can change Earth's surface.
Water, wind, ice, gravity, volcanic eruption
This process moves rock and soil from one place to another.
Erosion
This type of soil is the largest particle type we looked at.
Pebbles
This landform is a large area of mostly flat or gently rolling land.
Plains
This low area of land is found between hills or mountains.
Valley
Why is humus helpful for plants?
It adds nutrients to soil and helps plants grow.
This process happens when moving water or wind drops sediment in a new place.
Deposition
This material feels gritty and is often found on beaches.
Sand
This raised landform has a broad, mostly flat top.
Plateau
This landform is surrounded by water on three sides but remains connected to a larger area of land.
Peninsula
Why does water usually drain through sand faster than through clay?
The particles are larger
Water freezes inside a crack in a rock and causes it to break apart. What process is this?
Weathering
This material has particles smaller than sand but larger than clay.
Silt
This landform is surrounded by water on all sides.
Island
This landform forms when a river deposits sediment near where it flows into a larger body of water.
Delta
A student sees soil being carried downhill by rainwater. Which process is happening?
Erosion
A river carries sand downstream and then drops it near the ocean, forming new land. Name the two processes happening.
Erosion and Deposition
Put these materials in order from smallest to largest particle size: sand, clay, and silt.
Clay, Silt, Sand
This deep valley has steep sides and is often formed by a river eroding rock over time.
Canyon
This landform can form when volcanic activity releases melted rock, ash, and gases from Earth's crust.
Volcano
Explain how weathering, erosion, and deposition can work together to change Earth's surface.
Weathering breaks rocks down, erosion moves the pieces, and deposition drops them in a new place