science

what is a Sediment

• is small, solid pieces of materialthat come from rocks or living things. Can alsoinclude remains of shells, stems, leaves,bones, etc.
• just a rock
• mineral
• none of the above

Most sedimentary rocks are formed through what process:

• The rock of Earth’s crust forms mountains, hills,valleys, beaches, and the ocean floor.
• is igneous rock formed fromlava that erupted onto Earth’s surface. Basaltis the most common extrusive rock and is oneof the most common on Earth. Basalt forms much of Earth’s ocean floors.
• weathering (breaking down), erosion(carrying away), deposition, compaction, and cementation.
• form from crystallization of molten materialor by crystallization of materials dissolved in water.

Weathering and Erosion occur when?

• Just occur at any time.
  __________________________
• volcano blows up
• destructive forces are breaking up andwearing away all the rocks on Earth’s surface.Water, wind, and ice loosen can carry away fragments of rocks.
• none of the above

Organic rocks form from

• the remains of plant sand animals deposited into thick layers.
• remains of wood and leafs
• remains of bones and dead birds
• remains of bugs and weeds

3 sedimentary rocks are: Clastic, Organic, and Chemical.

• true
• false

is this a good quiz or a bad one

• good
• bad