Sometimes sediments move from one place to another and can settle in layers.  This process is called

• Weathering 
• Erosion
• Expansion
• Sedimentary layering

Sediments under great heat and pressure over millions of years form this type of rock.

• Sedimentary
• Metamorphic
• Igneous

What will happen as layers of sediment undergo great pressure for millions of years?

• A sedimentary rock will form.
• A metamorphic rock will form.
• An igneous rock will form.
• It will remain as layers of sediment.

What is formed when molten rock material cools and hardens to form a solid?

• a sedimentary rock is formed
• A metamorphic rock is formed.
• An igneous rock is formed.
• Hard lava is formed.

Hawaii was formed from volcanoes which means most of its land and rock is igneous rock.

• True
• False

Many factors play a role in the formation of rocks. What is the difference in the formation of metamorphic rock and igneous rock?

• Heat and different minerals
• Erosion and hardening 
• Time and pressure
• There is not a difference in their formation

Which of the following best describes examples of erosion?

• Physical and chemical weathering
• Constant changes on the surface of the Earth
• Lakes and ponds
• Wind and moving water

The process of breaking down rock is 

• Weathering
• Erosion
• Plucking
• Abrasion

Wind, rain, chemicals and pressure are 4 ways that rocks can be broken down into smaller pieces.  These smaller pieces are called

• Pebbles
• Sand
• Sediments
• Granules

Choose the list of sediments that is listed from smallest particle size to greatest particle size.

• Sand, gravel, silt, clay
• Gravel, sand, clay, silt
• Clay, gravel, sand, silt
• Clay, silt, sand, gravel