Exploring Earth's Geology

What are the two types of crust found on Earth?

• Sedimentary and Metamorphic

• Mantle and Core

• Continental and Oceanic

• Granite and Basalt

What is the Earth's outer core made of?

• Magnesium Compounds

• Silicon and Oxygen

• Molten Iron

• Solid Iron and Nickel

How do scientists study the Earth's interior?

• Satellite imaging

• Direct observation

• Seismic wave analysis

• Deep drilling

What type of rock is granite?

• Sedimentary

• Intrusive Igneous

• Metamorphic

• Extrusive Igneous

What is the main difference between intrusive and extrusive igneous rocks?

• Location of formation

• Color and density

• Mineral content

• Size of crystals

What event led to the formation of the Himalayas?

• Volcanic eruptions

• Collision of the Indian and Eurasian plates

• Meteor impacts

• Erosion of the Tethys Sea

What affects the crystallization and texture of a rock?

• The amount of water it contains

• The type of minerals it contains

• The speed at which magma cools

• Its exposure to the sun

What is the role of water in the rock cycle?

• It alters and decomposes rocks through weathering and erosion

• It helps in the formation of metamorphic rocks

• It dissolves rocks to form sedimentary rocks

• It cools magma to form igneous rocks

What process transforms sediments into sedimentary rock?

• Metamorphism

• Crystallization

• Compaction and cementation

• Melting

What is gneiss formed from?

• Sedimentary rock

• Magma

• Any type of rock through metamorphism

• Granite only