6th grade Science Study Guide Flashcards
1
Q
What is weathering? p. 149
A
The mechanical and chemical processes that change objects on Earth’s surface over time
2
Q
What is mechanical weathering? What are 4 causes of mechanical weathering? p. 150-151
A
When physical processes naturally break rocks into smaller pieces.
Ice wedging, abrasion, plants, and animals
3
Q
What is chemical weathering? What are 3 causes of chemical weathering? p. 152-153
A
Chemical weathering changes the materials that are part of a rock into new materials.
Water, acids, and oxidations.
4
Q
What are the 2 factors that affect weathering rates? p. 154
A
Location and weather
