sedimentary rocks

Question 1

what are the 4 steps for forming sedimentary rocks

Answer 1

1. weathering
2. erosion
3. deposition
4. compaction and cementation

Question 2

what is compaction

Answer 2

process that squeezes sediments

Question 3

what is cementation

Answer 3

dissolved minerals fill spaces among sediments

Question 4

what are sedimentary rocks classified by

Answer 4

based on the way the form

Question 5

what 3 groups do sedimentary rocks classify in

Answer 5

clastic, chemical, organic

Question 6

how do clastic sedimentary rocks form

Answer 6

weathered bits of rock and minerals from physical weathering

Question 7

how do chemical sedimentary rocks form

Answer 7

dissolved minerals separate from water and is formed by chemical weathering

Question 8

how do organic sedimentary rocks form

Answer 8

shells and skeletons of organisms that settle to the ocean floor

Question 9

what are 2 features of sedimentary rocks

Answer 9

layering and fossils

Question 10

graded bedding

Answer 10

different sizes and shapes of sediment settle to different levels in the rock

Question 11

cross bedding

Answer 11

slanting of layers in sedimentary rock