This is molten rock found below the earth's surface.
What is magma?
A fine-grained sedimentary rock formed mostly of mud and silt.
What is mudstone?
Describe texture.
The sizes, shapes, and positions of the grains that make up the rock.
When sediments go under compacting and cementing processes they become_______
What is sedimentary rocks.
Which period is between 290-360 million years?
What is Carbonifereous?
A ____________diagram is a combination of the cross-section and the top view of the topography of the landscape.
This is molten rock found above the earth's surface.
What is lava?
The processes that turn sediments into sedimentary rocks?
What are compaction and cementation?
Acid rain is rainwater that is more acidic than normal rainwater. Acid rain can also dissolve the minerals in rocks faster than normal rainwater can. Which statement about acid rain is true?
Acid rain causes more weathering than normal rainwater does.
When igneous, metamorphic and sedimentary rocks go under weathering and eroding they become_________________
What are sediments?
Which period when only bacteria, fungi and algae were found.
What is Cambrian?
The different landforms of the Earth are caused by?
What are movements inside the Earth, erosion and volcanoes?
Igneous rocks are categorized as _________ or _________, depending on where the molten rock cooled.
What are extrusive and intrusive.
A fine to medium-grained sedimentary rock that are light in colour and contain silicates.
What is sandstone?
A large amount of sediment is deposited on a plain in a short amount of geologic time. Which of the following correctly describes a possible result?
What is the crust subsides?
The processes that turn metamorphic rocks into sediments
What is weathering and eroding?
A large amount of sediment is deposited on a plain in a short amount of geologic time. Which of the following correctly describes a possible result?
The crust subsides due to the motion of the sediment as it is deposited.
Which term should replace the question mark?
deposition
__________ igneous rocks have larger crystals than the other kind of igneous rocks.
What is intrusive?
This type of sedimentary rock forms when dead plants and animal remains accumulate and then cemented together.
What is a sedimentary rock?
What effect will the rate at which the magma cools have on the texture of the igneous rock?
The faster the magma cools, the smaller the crystals in the rock will be
_________ and ____________ turn sedimentary rocks into metamorphic rocks?
Heat and pressure
What is the difference between a mineral and a rock?
Rock can be made of noncrystalline material, but minerals are always crystals.
The study of rocks, their history, and the processes that form and change them.
What is geology?
If the granite is exposed to intense heat and pressure, it can change to gneiss. Which type of change takes place when granite turns into gneiss?
What is metamorphic rock?
Which mineral has the greatest density?
What is galena?
Shale, a sedimentary rock, is the parent rock of this metamorphic rock, slate. What is needed for this to happen?
What are heat and pressure?
When metamorphic and igneous rocks go under melting they turn into__________
What is magma? (a solid to a liquid.)
Which part of the rock cycle helps form igneous rock, but not other types of rock?
What is Melting?
Which type of rock is forming deep below the surface?
What is foliated metamorphic rock?
Conglomerate, sandstone, and siltstone are all examples of sedimentary rocks. What is the process of formation that these rocks have in common?
What is cementation?
This describes the sizes, shapes, and positions of the grains that make up the rock.
What is texture?
Which term describes the rock that will eventually form from the sediment?
Clastic
What are three changes that can cause minerals to form by metamorphism?
What are temperature, pressure, and chemical makeup?
What idoes thia represent
What is a mineral?
What is happening?
Magma is rising upwards.
What change of state takes place when magma turns into igneous rock?
Liquid to a solid.
What is needed for a sedimentary rock to become a metamorphic rock?
heat & pressure
Defines subsidence.
Earth sinking
This is true about acid rain.
Acid rain causes more weathering than normal rainwater does.
The rock felt hard, it was yellow, and it appeared to be made of layers. Declan concluded that the rock was sedimentary. Which observation best supports this conclusion?
The rock's layers.
three changes that can cause minerals to form by metamorphism?
heat, pressure, and chemical makrup.