Types of Rocks
The three types of rocks
What are: 1. igneous rocks; 2. sedimentary rocks; 3. metamorphic rocks?
The breaking down of minerals and rocks into small pieces from wind, rain, and ice
What is weathering?
the thickest layer of the Earth made of molten rock
What is the mantle?
What layer of the earth has plates?
What is crust?
The remains of living things from the past
Fossils
A rock made from melting and cooling
What is: igneous
The movement of sediments
What is erosion?
The hottest layer; made of solid iron and nickel
What is the inner core?
Two plates that slide past each other.
Transform boundary
Scientists use these to provide information about life and conditions of the past.
What are: fossils?
A rock that has changed from one type of rock to another by heat or pressure
What is a metamorphic rock?
When sediments settle after erosion
What is: deposition?
The coldest, thinnest layer
What is: crust?
The type of boundary formed where two tectonic plates come together
What is a convergent boundary?
Fossils are usually found in this type of rock.
What is: sedimentary rock?
Rocks that are usually found near volcanoes and are formed from the cooling and hardening of hot magma or lava
What are igneous rocks?
Weathering and erosion form
What are sediments?
The 4 main layers of the Earth
What are: 1. crust; 2. mantle; 3. outer core; 4. inner core?
The type of boundary formed when tectonic plates move apart
What is a divergent boundary?
Mountains and volcanoes are formed from which type of plates?
What is convergent?
Small particles compact and cement together to form this type of rock.
What are: sedimentary rocks?
When rocks change from one form to another and back again over many years
What is the rock cycle?
Two layers that are solid
What is: inner core and crust?
Three effects of plate movement
Mountains, earthquakes, volcanoes, sea floor spreading
Name 4 ways humans negatively impact the Earth
What is pollution, deforestation, habitat destruction, oil spills, mining?