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Weathering and erosion 4th grade science

Weathering and erosion 4th grade science

Weathering and erosion: crash course kids #10.2

Weathering is the breakdown or dissolution of rocks and minerals on the Earth’s surface. Water, ice, acids, salts, plants, animals, and temperature variations are all weathering agents.
After a rock has been broken down, erosion transports the rock and mineral fragments further. There is no rock on the earth that is large enough to withstand the effects of weathering and erosion. These processes carved landmarks in the United States, such as the Grand Canyon in Arizona. This huge canyon extends for 446 kilometers (277 miles), is as deep as 29 kilometers (18 miles), and reaches a depth of 1,600 meters (1 mile).
The rugged terrain of Earth is continually changing due to weathering and erosion. Over time, weathering wears away at exposed surfaces. The amount of time a rock has been exposed to the elements influences how prone it is to weathering. Rocks that are easily buried under other rocks, such as lavas, are less susceptible to weathering and erosion than rocks exposed to agents like wind and water.
Weathering is also the first step in the formation of soils because it smooths rough, sharp rock surfaces. Plants, animal bones, fungi, bacteria, and other species combine with weathered minerals. Weathered materials from a range of rocks are richer in mineral diversity and contribute to more fertile soil than weathered materials from a single type of weathered rock. Glacial till, loess, and alluvial sediments are some of the soil forms associated with weathered rock mixtures.

Weathering, erosion, and deposition – part 1

The majority of rocks are extremely strong. A small amount of water, on the other hand, may cause them to split. Water seeps into cracks and freezes, which allows it to grow. Cracks will grow in size as a result of this powerful force. Water’s repetitive freeze-thaw action will split rocks apart over time. Scree is formed when pieces of rock break off.
In warm climates, this form of erosion is natural. During the day, the sun shines on the rocks, causing them to grow. Because of the cooler temperature, the rock contracts at night. Tiny pieces of surface rock flake off as a result of this ongoing process.
Chemical weathering occurs when a reaction affects the chemical composition of rock. Rock can be dissolvable with slightly acidic water. Slightly acidic rain, for example, may alter the chemical composition of limestone, resulting in the formation of a limestone pavement. This happens on the surface of limestone, as well as along the joints and bedding planes. Buildings made of limestone have also shown signs of this.

Weathering and erosion || science video for kids

Your students will learn about erosion, how it affects the earth, and why it is so powerful in this series of games. According to study, the Weathering and Erosion learning goal, which is focused on NGSS and state requirements, improves student participation and academic success in your classroom.
Aside from plate tectonics, the most important change to the earth’s crust is caused by moving water (including ice). Wind causes water to move, resulting in waves. Water is often moved by gravity, which allows it to flow downward. The more water there is and the faster it flows, the more erosive effect it has.
Rainwater and runoff, above- and below-ground streams and rivers, ice sheets and glaciers, and oceans are only a few examples of flowing water. Both of them have an effect on the earth’s solid surface over the course of minutes, months, or millions of years.
Weathering is the mechanism of non-moving rock breaking down. When water freezes in holes in the rock, it spreads and fractures the rock, causing physical weathering. Water reacts with minerals in the rock to form new minerals and dissolve others, resulting in chemical weathering.

Weathering and erosion for kids | science lesson for grades

Have you seen the series Crash Course Kids?

Erosion and weathering for kids -causes and differences

There are some fantastic new YouTube videos.

Science song – weathering and erosion – sc.4.e.6.4

Weathering and flooding are explained by teenagers.

Weathering and erosion (and candy!)

Mechanical and chemical weathering and erosion are addressed in this video (including the differences).

Weathering, erosion, deposition? what’s the difference

They depict the evolution of Massachusetts’ coastline over the last few decades.

Weathering and erosion – mr. pearson teaches 3rd grade

There’s also a sighting of the Little Mermaid.

Difference between weathering and erosion

Take a look at it here.
Students will measure the effects of erosion in this experiment.
Is it easier to use dirt, rocks, or plants to avoid erosion?
Put it to the test.
Calculate the sum of soil that has been eroded.
Make a note of the details.
To learn more, read this article >
3. Map out your thoughts
Would you like to provide students with an opportunity to develop their knowledge? Create a concept map to visualize the associations between concepts. I produced a set of cards with essential words and a couple of blank cards for students to fill in with their own. Students mark the association and determine how the terms are linked. The cards are then glued flat!
Erosion is a term used to describe the process of Students may use TpT stations to explore, analyze, and review information. Students will complete 9 different station activities at their own pace. Assign all students to the same station, assign separate stations to different classes, or let students pick! You will find them on TpT.