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