What is the difference between chemical and mechanical weathering for kids?
Chemical weathering exists when rock interacts with chemicals — oxygen, carbon dioxide, water or acids — and the rock breaks down or changes color. … Mechanical weathering occurs when rock formations break into smaller pieces as a result of heat from the sun, running water, shifting ice, or growing tree roots.
What causes mechanical weathering quizlet?
The causes of mechanical weathering include freezing and thawing, release of pressure, plant growth, actions of animals, and abrasion. … The forces of weathering break rocks into smaller and smaller pieces. Then the forces of erosion carry the pieces away.
What is the main difference between chemical and physical weathering quizlet?
Rocks are chemically weathered when a chemical reaction takes place between a rock and another chemical. The difference is that physical weathering is a process that weathers rock without a chemical reaction or change. Chemical weathering changes the identity of rocks and it involves a chemical reaction or change.
Which best describes how mechanical and chemical weathering work together?
How do mechanical and chemical weathering work together to speed up the weathering process? Mechanical weathering breaks rocks down into smaller pieces. This gives the rock a larger surface area for chemical reactions to take place.
How is chemical weathering different from physical weathering a physical weathering involves the movement of substances while chemical weathering does not?
Physical weathering is mechanical breakdown, while chemical weathering involves the chemical breakdown of substances. Animals do not contribute to natural erosion.
What are the different causes of mechanical weathering?
The main causes of mechanical weathering are water, ice, salt/mineral crystals, the release of pressure, extreme temperatures, wind, and even the actions of plants and animals.
What influences both chemical weathering and mechanical weathering?
Precipitation increases: More water allows more chemical reactions. Since water participates in both mechanical and chemical weathering, more water strongly increases weathering.
Which best defines mechanical weathering?
Which of the following statements best describes mechanical weathering? The physical breakdown of rock by environmental factors. … It is a process by which rocks are broken down by chemical reactions.