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What is a sedimentary rock?
A rock formed from lava
A rock formed from sediments
A rock formed by heat and pressure
What are sediments?
Small pieces of rock and other materials
Melted rock inside Earth
Hot flowing lava
Which process breaks rocks into smaller pieces?
Melting
Weathering
Eruption
What process moves sediments from one place to another?
Condensation
Crystallization
Erosion
Where do sediments usually settle?
Deep inside the mantle
At the bottom of rivers seas or lakes
Inside volcanoes
What happens to sediments after they settle?
They turn into magma
They melt
They form layers
What is deposition?
Eating of rocks
Dropping of sediments
Burning of rocks
Which force presses sediment layers together?
Pressure
Light
Sound
What is compaction?
Sediments breaking apart
Sediments melting
Sediments being pressed together
What helps glue sediments together?
Evaporation
Freezing
Cementation
What is cementation?
Sediments turning to lava
Minerals sticking sediments together
Water breaking rocks
Which material often acts as natural cement?
Minerals
Plastic
Air
How are sedimentary rocks usually arranged?
In layers
In bubbles
In crystals
Which rock is a sedimentary rock?
Granite
Basalt
Sandstone
Which sedimentary rock forms from sand?
Obsidian
Sandstone
Marble
Which sedimentary rock forms from shells of sea animals?
Limestone
Gabbro
Pumice
