THE STRUCTURE OF THE EARTH

What is the outermost layer of the earth?

• Crust

• Mantle

• Core

• None of the above

What are minerals?

• Minerals are naturally organic substances

• Minerals are naturally inorganic substances

• Substances that do not have a definite chemical composition

• None of the above

What are the main components of the oceanic crust?

• Silicon(Si) and Aluminium(Al)

• Nickel(Ni) and Iron(Fe)

• Silicon(Si) and Magnesium(Mg)

• Silicon(Si) and Hydrogen(H)

The type of rock that takes place in layers or strata. Also called Stratified rocks.

Once magma reaches the earth’s surface it is called______

Definition of crevices

• Small and narrow openings in a volcano

• Small and narrow openings in a rock

• Big and wide openings in a rock

• Big and wide openings in a volcano

_______ is the hardest mineral

• Ruby

• Diamond

• Pearl

• Talc

Metamorphic rocks undergo the process of _______

• Photosynthesis

• Metamorphosis

• Magnetism

• None of the above