Layers Of The Earth
This is the outermost layer of Earth where we live, made of solid rock.
What is the crust?
This modern theory explains how Earth’s plates move and cause continental drift.
What is plate tectonics?
These are naturally occurring solid substances with a specific chemical composition and crystal structure.
What are minerals?
This process involves removing rock from the Earth to extract valuable minerals.
What is mining?
This is the thickest layer of Earth, made of hot, slowly flowing rock beneath the crust.
What is the mantle?
This scientist proposed the theory of continental drift in 1912.
Who is Alfred Wegener?
These are solid materials made up of one or more minerals.
What are rocks?
This is the first stage of mining where scientists search for valuable mineral deposits.
What is mineral exploration?
This layer is liquid and made mostly of iron and nickel, helping create Earth’s magnetic field.
What is the outer core?
This supercontinent once contained almost all of Earth’s land before breaking apart.
What is Pangaea?
These are the three main types of rocks based on how they form.
What are igneous, sedimentary, and metamorphic rocks?
This type of mining is used when minerals are close to the Earth’s surface and involves digging a large pit.
What is an open-pit (surface) mine?
Scientists use these waves from earthquakes to study Earth’s interior.
What are seismic waves?
These are the large sections of Earth’s lithosphere that move slowly over time.
What are tectonic plates?
This type of rock forms when magma or lava cools and solidifies.
What is igneous rock?
What are the main resources mined in Canada
What is diamonds, iron, zinc and gold?
These are large pieces of Earth’s lithosphere that move slowly and cause earthquakes and volcanoes.
What are tectonic plates?
These natural events often occur at plate boundaries due to movement of tectonic plates.
What are earthquakes and volcanoes?
his term describes the continuous process that changes rocks from one type into another over time.
What is the rock cycle.
This type of mining is used when ore is deep beneath the Earth’s surface and requires tunnels to reach it.
What is underground mining?