Crushed It!
What are rocks formed from cooled lava called?
Igneous rocks
Which type of rock is formed from heat and pressure?
Metamorphic
Define Igneous Rocks
Rock that forms when melted rock cools and hardens
Describe physical weathering.
Physical weathering breaks rocks into smaller pieces without changing what they are made of.
What is the process of moving rock and soil?
Erosion
What is an example of chemical weathering?
ex. Acid rain dissolves limestone (answers may vary)
Define Sedimentary Rocks
Rock that forms from layers of sand, mud, and small pieces pressed together.
Can you explain how erosion affects landscapes?
ex; Erosion changes landscapes by moving soil and rocks, creating valleys, and shaping mountains.
What type of weathering breaks rocks down by wind, water, or ice?
Physical weathering
What is the main cause of erosion?
Wind, water, or ice moving rocks
Define Metamorphic Rocks
Rock that changes form due to heat and pressure.
What role do plants play in weathering?
Plants can break down rocks through their roots and can also produce acids that chemically weather rocks.
What is it called when rock pieces settle in a new place?
Deposition
Where are rock pieces often deposited?
in rivers, lakes, or oceans.
Define Erosion
The process that moves soil and rocks from one place to another.
Describe the difference between Physical and Chemical Weathering
Physical weathering breaks rocks into smaller pieces without changing what they are made of, while chemical weathering changes the minerals in the rock by chemical reactions.
What type of rocks are formed from layers pressed together?
Sedimentary rocks
Which type of rock often contains fossils?
Sedimentary
Define Chemical Weathering
When rocks are broken down by reactions with water, air, or other chemicals.
Why is the rock cycle important?
The rock cycle is important because it helps form soil, creates new rocks, and shapes the land on Earth's surface.