1. BRANCHES OF
CHEMISTRY

2. 5 chemists from each of the 5
branches of chemistry are out
hiking the Appalachian trail on a
cold day.

3. They come upon some fresh,
steaming scat. Did it come
from a rabbit? A deer? A
bear?!

4. ?

6. Organic Chemistry
Organic Chemistry is the
study of compounds that
contain the elements carbon
and hydrogen.
–Petroleum
–Almost all medicine
–Food

7. ORGANICORGANIC
Known as carbon
chemistry
Food chemistry
Fossil Fuels

8. The organic chemist
would take a sample of
scat and test it (NMR
and IR tests) to see if
the animal was a
vegetarian or carnivore
based on the various
degraded foods
present in the scat.

9. Inorganic Chemistry
The study of compounds
that are made of only one or
no carbon elements.
–Most of what is not alive falls
under this category

10. INORGANICINORGANIC
Involves all elements
Metals/Materials
chemistry
Chemical Reactions

11. The inorganic chemist would
take a sample of scat and
figure out if it is an acid (like
vinegar) or a base (like lye)
by dropping into a pH
indicator liquid.

12. Physical Chemistry
Chemistry that relies on a lot of
physics and math to study the
changes in energy that happen
to matter.
–The study of the shape of non-
living matter and how that
affects matter at the visible
scale.

13. PHYSICALPHYSICAL
Heating/Freezing of
materials
Involves matter and
energy
Exothermic, Endergonic—
Nuclear chemistry

14. The physical chemist might
take the results that the
organic chemist found and
get more information about
the degraded food. The
physical chemist would not
touch the scat!

15. Analytical Chemistry
Chemistry that detects & identifies
if a substance is present in a
sample (qualitative analysis) and
how much is there (quantitative
analysis).
–CSI folk
–Determine if a white powder is
cocaine or just sugar.

16. ANALYTICALANALYTICAL
Identifies, Evaluates,
Compares
Uses instruments to
find answers
Basis of
Chemical Research

17. The analytical chemist would
take a sample of scat and
calculate if the animal was
drinking clean or polluted water
based on the levels of pollution
chemicals in the feces. This
chemist would also tell you the
quantities of everything that is
in the scat.

18. Biochemistry
• Chemistry that deals with chemical processes in
living organisms.
– The study of digestion
– The study of bugs
– The study of cancer
• .

19. BIOCHEMISTRYBIOCHEMISTRY
“Living” Chemistry;
Environmental
Medical research
Proteins, Amino
Acids, DNA, food

20. This chemist would tell you how
well the animal was digesting
his food