Rock Cycle
The three groups of rocks are classified by
How they are formed
When weathered rocks are dropped off in a new location through wind, water, or other means
deposition
What mineral is the softest mineral on Moh's Hardness Scale and the main ingredient in baby powder?
talc
What are the 3 types of rocks?
Igneous, Metamorphic, sedimentary
Which type of rock is made from a rock being changed by heat and pressure?
metamorphic
True or False:
Any rock can become a different type of rock under the right conditions
True
The process that breaks down rocks and other materials on Earth's surface is called
weathering
What is the hardest mineral on Earth?
diamond
__________________ rocks form when lava or magma cools and hardens.
igneous
How does freezing water cause the weathering of rocks? The freezing water—
expands in cracks and breaks rocks.
What is another name for pieces of broken down rock? This makes up sedimentary rocks
sediments
How do plants most commonly break large rocks into smaller pieces?
plant roots grow into cracks in the rock
If you scratch a mineral on a tile it will leave a powder, what is this called?
streak
The process by which metamorphic rocks are formed..
heat and pressure
A rare and expensive mineral is called...
gem
The ___________ _______________ is the process of one type of rock transforming into a different type of rock.
rock cycle
What is the process that picks up and moves weathered rocks?
erosion
The way in which a mineral's surface reflects light. Ex. the mineral is metallic
luster
Which type of rock is made from lava or magma cooling?
igneous
Which of the following properties of minerals is described with the Mohs scale?
hardness
Each rock type can follow only one pathway of the rock cycle.
false
sand dunes are formed from what
wind
The tendency of a mineral to break along smooth, flat surfaces.clea
cleavage
Which type of rock is made by small bits of rock, mud, or sand compacted and cemented together?
sedimentary
what is the name of a person who studies rocks?
geologist