How does it form?

• When wind, water, and ice constantly wear away and weather rocks, smaller pieces called sediment are left behind
• These are sedimentary rocks, also known as gravel, sand, silt, and clay
• As water flows downhill carries the sedimentary grains into lakes and oceans, where they deposited
• As the loose sediment piles up, the grains eventually get compacted or cemented back together again
• The result is new sedimentary rock

TYpes of sedimentary rocks

• Sandstone
• Gypsum
• Limestone
• Shale