How do Sedimentary rocks formed and what are they made of?

Answer 1

Sedimantary Rocks

These rocks are formed from th ehot lava

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Answer 2

Sedimentary rocks form from sediments. Sediments are loose materials such as rock fragments, mineral grains and bits of plant and animal remains that have been transported and deposited. Layer upon layer of sediments build up as more and more sediments are deposited in a place. Each upper layer presses down on the layer below it. The pressure causes the layers to stick together or become compacted and form solid rock. This happens when the sediments are small. Sand and pebbles are sediments that are large. Large sediments cannot be compacted. They are cemented together naturally from minerals dissolved in water. The cemented sediments form sedimentary rocks. Most sedimentary rocks form as layers. The older layers are at the bottom because they were deposited first. ^_^

Answer 3

A sedimentary rock is formed from sediments, that is particles of preexisting rocks that have been broken down by weathering process and transported to new locations by water, ice or wind. The sediments accumulate over time as layers deposited parallel to the Earth's surface and, as they become buried by overlying deposits, they harden to form rock - sedimentary rock. During their deposition process, they may include burrows, shells or bones of living creatures and these become fossils as the sediments harden.

Answer 4

Sedimentary rocks are rocks formed from sediment building up.

Answer 5

Sedimentary rocks are formed when loose particles are pressed together by the weight of overlying sediments. These sediments are rock particles such as mud, sand or pebbles.