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