How is Sedimentary Rock Formed

What are sedimentary rocks formed from?

• Particles of sand, shells, pebbles, and other fragments of material

• Molten lava

• Crystals formed from cooling magma

• Solidified volcanic ash

What is the process called when particles settle in layers and harden into rock?

• Sedimentation

• Metamorphism

• Crystallization

• Erosion

Which of the following is NOT a common agent of erosion?

• Fire

• Water

• Wind

• Ice

What role do minerals like quartz or calcite play in the formation of sedimentary rocks?

• They act like glue, holding the particles together

• They break down rocks into smaller pieces

• They move particles to new locations

• They cause the layers to become thicker and heavier

What can sedimentary rocks tell us about Earth's history?

• They often contain fossils, which provide information about past environments

• They show the movement of tectonic plates

• They reveal the age of the Earth

• They indicate volcanic activity