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Weathering

Adapted from Wikipedia · Explorer experience

Natural rock formations called tafoni along the Sonoma Coast in California.

What Is Weathering?

Weathering is the way rocks, soils, and minerals slowly change over time. It happens when they touch water, sunlight, and wind. Weathering happens right where the rocks are, without moving them far.

There are two main types of weathering: physical and chemical. Physical weathering breaks rocks apart. This can happen when water freezes inside cracks, making them wider. Rocks can also break when the temperature changes a lot, like in hot deserts.

Chemical weathering changes rocks in another way. Water, air, and tiny gases help change the rocks slowly. This can turn some rocks into clay or other materials.

Why Weathering Matters

When rocks weather away, they help make soil. Soil is important for plants to grow. Weathering also helps shape many of Earth’s landforms. It is a big part of the rock cycle.

Weathering can even affect buildings made of stone or concrete. In places with acid rain, buildings can break down faster. Good design can help protect buildings from this damage.

Weathering is a slow but powerful process that helps keep our planet changing and beautiful.

Images

A impressive natural rock arch formed by erosion in Jebel Kharaz, Jordan.
A rock formation showing signs of frost weathering in the Abisko region of Sweden.
A granite dome rock formation showing natural geological exfoliation in Enchanted Rock State Natural Area, Texas.
A comparison of weathered and unweathered limestone from a roadcut in State College, Pennsylvania.
A close-up of rocks showing how minerals change over time due to weather and fractures.
A close-up view of gold particles found in a rock sample, showing the remains of a pyrite crystal.
Close-up of rusted pyrite mineral cubes showing natural oxidation patterns, a common chemical reaction in geology.
A picture showing how weather and nature can change rocks and stone over time.
A view of a lava field near La Mancha on the island of La Palma, showing the rough, dark texture of cooled volcanic rock.
A close-up view showing how concrete surfaces can break down over time due to natural weathering.
A close-up of stone erosion patterns on a building in Gozo, Malta, showing how salt and weather shape the surface over time.
Ancient rock carvings and natural sandstone formations near Qobustan, Azerbaijan.
Weathered limestone samples showing different stages from clay to solid rock, from a mining site in the Democratic Republic of Congo.
A scientific diagram showing how water breaks down a silicate mineral, an important process in nature.

Related articles

This article is a child-friendly adaptation of the Wikipedia article on Weathering, available under CC BY-SA 4.0.

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