Physical Weathering🐋
The process where water seeps into cracks, freezes, expands, and breaks the rock apart.
What is Frost Wedging?
The most powerful mover of sediment on Earth.
What is Liquid Water?
This is the word for when wind or water "drops off" the sediment it was carrying.
What is Deposition?
This R word happens when oxygen reacts with iron in a rock to turn it red or orange.
What is Rust/Oxidation?
Pieces of broken-down rock, sand, and mud are called this.
What is Sediment?
This occurs when rocks bump against each other in a stream, becoming smooth and rounded.
What is Abrasion?
This force is why a rock falls down a cliff during a landslide.
What is Gravity?
The triangular landform at the mouth of a river where sediment builds up.
What is a Delta?
This liquid can slowly dissolve statues or limestone caves over many years
What is Acid Rain?
This is the loose, top layer of the Earth's surface where plants grow, made of weathered rock and organic matter.
What is Soil?
This living thing can cause physical weathering by growing into cracks and prying rocks apart.
What are Plant Roots?
In a desert, this is usually what moves the sand from place to place and makes sand dunes.
What is Wind?
When a river curves, deposition happens on the (Inside / Outside) of the curve.
What is the Inside?
Lichens and mosses produce weak ____ that break down the rocks they grow on.
What are Acids?
A V shaped valley is usually carved by a ____.
What is a River?
The process where outer layers of rock peel away like an onion.
What is Exfoliation?
Huge, moving sheets of ice that pick up boulders and carry them miles away.
What are Glaciers?
Wind drops sand to create these hills at the beach or in the desert.
What are Sand Dunes?
Chemical weathering happens much faster in places that are very hot and very ____.
What is Wet/Humid?
A U shaped valley is usually carved by a ____.
What is a Glacier?
Physical weathering is most common in this type of climate.
What is a climate with frequent temperature changes?
If you see a deep, V-shaped valley with a river running through the bottom, you know that the valley was carved out by this agent of erosion.
What is a river?
Large, heavy sediments are dropped (First / Last) when a river slows down.
What is First?
Unlike physical weathering, chemical weathering actually changes the rock into a ____ substance.
What is New/Different?
True or False: The Earth's surface looks exactly the same today as it did millions of years ago.
What is false?