igneous
What are molten liquid rocks called?
Lava/Magma
What are sedimentary rocks known for?
Layers.
What does the word metamorphic mean?
To change.
True or False: Rocks can change from one rock to another.
True!
What are tectonic plates?
The rock layer in-between our crust and mantel that is always moving
True or False: Igneous rocks often have air bubbles in them
True. Magma/lava cools around the air bubbles, creating little holes.
What are sediments?
Sediments are tiny pieces of sand, dirt, and rocks.
What causes metamorphic rocks to form?
Heat and pressure.
When a sedimentary rock is put under more pressure, what does it become?
A Metamorphic rock!
What is weathering?
The process of physically or chemically breaking rocks.
True or false: Magma and lava produce different kinds of igneous rocks.
True! They both cool differently, causing different rocks to form.
What is a fossil?
Something (often once living) that gets preserved into the rock.
True or false: Metamorphic rocks are created from changing already existing rocks.
True!
What is the start of the rock cycle?
Trick question! There is no start or finish, hence the word cycle!
What is erosion?
Erosion is the carrying of broken down sediments from one place to another.
What is obsidian formed from?
Lava (hot rock on the surface of the Earth)
True or false: Sedimentary rocks can only be formed from sand sediments?
False! They can be formed from all kinds of sediments.
How are diamonds formed?
When coal goes under extreme heat and pressure
What rock type forms crystals?
Igneous.
Give an example of physical weathering.
Wind, rain, snow, roots, temperature...
where can Igneous rocks form?
Above and bellow the surface.
What is rock stratification?
Rock stratification is how the rock naturally forms in layers.
What happens to crystals when they go under heat and pressure?
They flatten into lines.
What is a rock scientist called
Geologist.
What issue are we facing with erosion near Lake Michigan?
Houses near the lake are getting closer and closer to the water because the land the houses are built on is disappearing.