Mechanical Weathering
What type of weathering breaks rocks into smaller pieces without changing their chemical makeup?
What is mechanical weathering?
What happens to the materials in rocks during chemical weathering?
What is they change into new materials?
What two environmental factors do both types of weathering depend on?
What are water and temperature?
What type of soil holds more water and nutrients: sandy or clay?
What is clay soil?
What happens to the surface area of a rock when it breaks into smaller pieces?
What is it increases?
What common liquid dissolves many substances and is important in chemical weathering?
What is water?
Where does mechanical weathering happen fastest?
What is in areas with lots of temperature changes?
Why does clay soil hold more water and nutrients than sandy soil?
What is because it has smaller particles with more surface area?
What is the process called when water freezes in cracks of rocks and causes the cracks to grow?
What is ice wedging?
What kind of substance has a pH less than 7 and causes stronger chemical weathering than water?
What is an acid?
In what kind of climate does chemical weathering happen fastest?
What is warm and wet?
What happens to the chemical makeup of a rock during mechanical weathering?
What is it stays the same?
What is it called when rocks are worn away by friction or impact?
What is abrasion?
What is it called when oxygen reacts with other elements in rocks?
What is oxidation?
In what regions does weathering overall occur the fastest?
What are regions near the equator?
What do all types of weathering eventually do to rocks?
What is break them down into smaller pieces or new materials?
Name two living things that can cause mechanical weathering.
What are plants and animals?
What is the useful product of oxidation that people use to obtain metals?
What is an oxide (or ore)?
What determines how quickly a rock weathers?
What is the most easily weathered mineral in the rock?
What do we call the chemical and physical processes that change objects on Earth’s surface over time?
What is weathering?