sedimentary rocks

What is the main process through which sedimentary rocks are formed?

• Volcanic Eruption

• Accumulation of Sediments

• Melting of Magma

• Crystallisation from Lava

Which of the following is NOT a type of rock?

• Igneous

• Metamorphic

• Crystalline

• Sedimentary

Sedimentary rocks are primarily formed from:

• Magma Cooling

• Accumulation of small pre-existing rocks

• Melting of the Earth's Crust

• Chemical reactions in Lava

Clastic sedimentary rocks are made from:

• Dead plants and animals

• Lava flows

• Crystals in water

• Broken pieces of other rocks

Which rock is formed with cemented sand-sized particles

• Sandstone

• Limestone

• Obsidian

• Coal

Coal is classified as which type of sedimentary rock?

• Metamorphic

• Bioclastic

• Crystalline

• Clastic

Which of these is a crystalline sedimentary rock?

• Rock Salt

• Coal

• Sandstone

• Conglomerate

What is Deposition?

• sediments is collected into a place and over many years have formed layers

• a process that breaks off tiny pieces of rock, can be caused by temperature, animals, plants and water systems

• the weight of the layers of sediment pressing together

• sediments is collected into a place and over many years have formed layers

Crystalline sedimentary rocks form when:

• Rocks melt and cool

• Organisms fossilize

• Minerals in water come out and stick together

• Sand is compressed

An example of a bioclastic sedimentary rock is:

• Sandstone

• Gypsum

• Limestone

• Conglomerate