What is Chemistry?

1. What do you think?

2. Chemistry is the study of the composition, structure, and properties of matter and the changes matter undergoes.

Chemistry

Plant

Sciences

Geology

Environmental

Science

Health and

Medicine Nuclear Chemistry

Physics

Astronomy

Biochemistry

Biology

Terrestrial

and Marine

Chemistry is the “The Central Science”

Ecology

http://htwins.net/scale2/

What does this mean?

Your thinking of your world must develop

from the macro stage to the micro stage.

6 Branches of Chemistry

• Organic chemistry

– study of the

element carbon and

compounds that

contain carbon

• Inorganic chemistry

– the study of

substances not

containing carbon

• Physical chemistry – the study of properties of matter and energy

• Analytical chemistry-

identification of chemicals

• Biochemistry – study

of composition and

changes in living species

• Theoretical chemistry

– computer modeling

THE SCIENTIFIC METHOD

These accidents occur and

discoveries made from them

because of the WAY we do

science using the ....

The 6 STEPS are…

1.State the purpose

of the experiment

Ask why.

What do you want

to know?

2. Gather

background

information…

Research and

learn what has

already been

determined.

For this class, just make an

If / then…statement

3. Form a

hypothesis…

a testable,

possible

explanation.

What do you

think will

happen?

4. Test

hypothesis…

Perform an

experiment, make

observations, or

make a model.

Make a specific

list of what will be

done so it can be

repeated.

5. Analyze data –

make tables,

graphs, etc.

What happened?

What did you see,

hear, or smell?

State your

observations.

0

20

40

60

80

100

1st

Qtr

3rd

Qtr

East

West

North

6. Draw a conclusion

–what do the results

mean?

Was your hypothesis

Correct or incorrect?

Independent, Dependent and Control

Independent Variable:

what is changed by the experimenter…

manipulated

Dependent Variable:

what changes as a result of the change

in the independent variable.

Controlled Variables:

what is held constant throughout the

experiment.

Determine the independent, dependent

and control variables in the data.

How would we display this data?

Remember DRY MIX

Dep

end

ent R

espo

nd

ing

on

Y ax

is Manipulated Independent on X axis

ASSIGNMENT…For Thursday

Google Scientific Method Flow Chart Images,

pick one out that you and partner would like to

make and bring it to class. Think of a problem you

could solve using the Scientific Method and

illustrate it on your flow chart, making sure to label

independent, dependent, and control variables

Here are some examples…

ETC.