Download organic sedimentary rock

EARTH SCIENCE HOMEWORK, Ch. 4, Sec 4.
Chemical and Organic Sedimentary Rocks
1. ___________ sedimentary rocks form when dissolved minerals
come out of solution. (106, P4)
2. Minerals collect when seas of lakes ___________. The deposits of
minerals that come out of solution form ________ and
_________. (106, P4)
3. Chemical sedimentary rocks are NOT made from ________
_________. (106, P3)
4. When calcium carbonate comes out of solution as calcite and its
many crystals grow together, __________ forms. (107, P1)
5. When water that is rich in dissolved salts evaporates, it often
deposits the mineral halite, which forms ______ ________. (107,
P2)
6. Rocks made from the remains of once-living _________ are called
________ sedimentary rocks. (pg. 107, P3)
7. One of the most common organic sedimentary rocks is _________________ limestone. (pg. 107, P3)
8. Like chemical limestone, fossil-rich limestone is made of the
mineral ________. (pg. 107, P3)
9. However, fossil-rich limestone mostly contains remains of once
living ocean ____________ instead of calcite that formed directly
from _______ _______ (2 words). (pg. 107, P3)
10.
Animals such as mussels, clams, corals and _______ make
their shells from CaCO3 that eventually becomes ________. (pg.
107, P4)
11.
When these shells are _________ together, fossil-rich
__________ forms. (pg. 107, P4)
12.
_________ is another ________ sedimentary rock that is
made of microscopic __________. (pg. 107, P5)
13.
_______, another useful organic sedimentary rock, forms
when pieces of dead ________ are buried under other sediments
in swamps. (pg. 108, P1)
14.
The resulting sediments are __________ over millions of
years to form _________, an important source of _________. (pg.
108, P1)
15.
The rock cycle has no _________ and no ______. (pg. 109,
P1)
16.
All of the rocks around you, including those used to build
houses and monuments, are part of the _______ __________ (2
words). (pg. 109, P2)