Mrs. Baldessari Chemistry
50 point project
Due: _______________ Name__________________________________________
Purpose of the Project:
A study of the development of modern atomic theory illustrates how theories can change as new discoveries are
made. For this reason, we normally study atomic theory in its historical context. You will discover through your
research: Who thought of the atom first, how the model of the atom has changed through time, how the model
looks today, and which people are responsible for the greatest changes in the atomic model.
BUILDING YOUR TIMELINE:
For each of the scientists listed below, you will be providing the following information:
 Background information on the scientists including: name, photo, where they were born, when did they died
10 points
 Brief description of the experiment each scientist conducted (approximately 100 words or less) including
the year they conducted the experiment 10 points
 The significance of their experiment – observations made and what they discovered/what the scientist is
known for(such as discovering protons) 10 points
 The name of the new model, and a photo of the new model or a photo of the experiment. (Note, in some
cases a new model was not developed, just a further understanding of the current model.) 10 points
 Neat, colorful, easy to read timeline 10 points
James Chadwick
John Dalton
Democritus
Eugene Goldstein
Robert A. Millikan
Earnest Rutherford
Joseph John Thomson
Erwin Schrödinger
YOUR TASK:
 Research each of the scientists. (Use you text book, my website, and the Internet.)
 You will be creating a timeline, on construction paper or poster board to communicate your findings
A) Draw a colored timeline on a construction paper or poster board with dates clearly labeled
B) Neatly, glue all the information on your timeline
C) Add color or other decorations to make your timeline visually interesting.
D) Refer to the rubric to ensure that you add all of the information required
E) You may choose to add other appropriate information and/or pictures you find during
your research.
F) Turn in project on time with rubric attached.
Mrs. Baldessari Chemistry
Scientists /
Photos/
Place of Birth/
Time period
(10pts)
0 Points
Scientists' names,
5 Points
photo, where they Did not provide, photo,
were born, when did where they were born,
they died
when did they died for
were not included
one or more scientists
in the project
8 Points
One or more of the
scientists names
were misspelled.
Photos, place of
birth, date of birth
and death are
provided
10 Points
All 8 Scientists' names were
spelled correctly and photos
of each scientist along with
place and date of birth and
death are provided.
Description of
the experiment
(100 words or
less) and
Date(s) of the
experiment
(10 pts)
4 Points
Did not explain
experiment or
provide the date of
the experiment for 2
or more scientists
6 Points
Did not explain
experiment nor
provide date of
experiment for 1
scientist
10 Points
Explained each
experiment and
provided dates of
the experiments
2 Points extra credit
12/10
Explained each experiment
in detail, but less than 100
words. Description included
the reasoning for the
experiment and the
predicted outcomes along
with the date(s) the
experiments were conducted
Significance of
the experiment
(10pts)
4 Points
Did not include all
observations from
the experiment and
makes no attempt
to connect the
observations to the
atomic model
6 Points
Did not include all
observations from the
experiment and does
not correctly connect
the observations to the
significance it has on
the atomic model
8 Points
Accurately describes
the observations
from the experiment
but does not explain
their significance it
applies to the atomic
model
10 Points
Accurately describes the
observations from the
experiment and explains
their significance as it applies
to the atomic model.
1 Point
No reference to
atomic model after
the scientist's work
5 Points
Missing 2 of the
following: names of
the models after each
scientists' work,
explanation, photo of
model or experiment
8 Points
Missing 1 of the
following: names of
the models after
each scientists' work,
explanation of how
the model changed
after the experiment
was completed,
photo of model or
experiment
10 Points
Included the name of the
atomic model after each
scientists' work and included
an explanation of the
structure, and a photo of the
model or experiment
0 Points
Project was not in
the accepted format
1 Point
Project was in the
accepted format, but
was not prepared to
turn in at their
designated time
3 Points
Project was in the
accepted format and
turned in on time
5 Points
Project was a work of art –
colorful, neat, creative,
something to be proud of
0 Points
Timeline
information appears
to be the words of
"another".
1 Point
Timeline show little
understanding of
experiments and
findings.
3 Points
Timeline shows an
understanding of
each concept but
does not tie
concepts together
5 Points
Timeline shows a deep
understanding of the
concepts and how they tie
together.
Atomic
structure after
their work
including the
name of the
model,
explanation of
how the model
changed, photo
of the model
and experiment
(10pts)
Creativity,
Neatness.
Turned in on
time
(5pts)
Understanding
(5pts)
.
Mrs. Baldessari Chemistry