wunder beta

🪨 Weathering and Erosion

Weathering breaks rocks into pieces; erosion carries the pieces away. Together they slowly reshape the whole planet.

lessons

~15 min

to learn

🔬 Science

subject

Ages 6–12

level

Start the course →

What you’ll learn

Breaking It DownDefine weathering as the breaking down of rock in place and name its causes.Weathering breaks rock into smaller pieces right where it sits, without moving them. It can be caused by freezing ice, growing plant roots, rain, and blown sand. Weathering works slowly, over many years.
Carrying It AwayDefine erosion as the movement of weathered material and give examples like canyons and deltas.Erosion moves weathered pieces to new places using water, wind, ice, and gravity. Rivers can carve canyons, and where they slow they build deltas. Weathering breaks rock; erosion carries it away.
Shaping the LandCompare weathering and erosion and sort examples of each.Weathering and erosion are two different steps that reshape the land. Weathering breaks rock apart in place, and it happens first. Erosion then carries the pieces away, and deposition drops them to build new landforms.

Questions this course answers

What does weathering do to rock?

Weathering breaks rock into smaller pieces right where it sits, without moving the pieces away.

How can freezing water cause weathering?

Water seeps into cracks, freezes, and expands, which pries the crack wider and slowly breaks the rock.

What does erosion do?

Erosion is the moving of weathered rock and soil to a new place by water, wind, ice, or gravity.

How was the Grand Canyon formed?

The Colorado River eroded rock over millions of years, carrying it away and cutting the deep canyon.

Which step usually happens first?

Weathering must break the rock into pieces first, and then erosion can carry those pieces away.

A river carrying sand to the ocean is an example of...

Carrying pieces to a new place is erosion. Weathering only breaks rock without moving it.

Grounded in trusted sources

USGS
National Geographic Kids
Britannica Kids
NASA

Every Wunder lesson is built from real, reputable sources — never invented.

Related Science courses

🪨The Rock Cycle 🏖️How does sand end up on a beach?🐬Whales and Dolphins Are Mammals 🎱What Happens When Things Collide 💧What Living Things Need 💡What Makes a Bulb Light Up 🏠What Uses Electricity at Home 🌍Where Are the Poles?

Wunder is a personalized learn-anything platform — tell it any topic and it builds a beautiful, fact-checked course in minutes, with narration, a knowledge check, and a college-style University track.

Browse more Science courses · All topics · Home