Vocabulary
A scientist that studies rocks is called a
geologist
The type of rock that forms from the cooling of molten rock (magma & lava) at or below Earth's surface is
igneous
Give an example if an igneous rock
Granite, basalt, pumice
What are rocks made of?
minerals
A mineral’s __________________ describes how its surface looks when light reflects from it.
luster
The type of rock that forms from an existing rock that is CHANGED by heat, pressure, or chemical reactions.
metamorphic
limestone, coal, sandstone
What is the hardest mineral?
diamond
A mineral’s _________________ is the ability to resist being scratched.
hardness
The type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented (glued) together
Sedimentary
Give an example of a metamorphic rock
marble, slate, quartzite
True or false: All rocks are made up of 1 or more minerals?
true
The way rocks or crystals are split and the direction they split is called
cleavage
Magma that reaches the earth’s surface is called
lava
The softest mineral is
talc
Naturally occurring substance, neither a plant nor an animal is called
mineral
How a rock feels is called it’s
texture
The particles that create sedimentary rocks are called
sediment
Which rocks are so light they can float in water?
pumice
List 3 ways to identify a mineral
luster, streak, hardness, cleavage, color