From Metals to Alloys to Colloids... A Coin-cidence?
Student Name:
______________________________________
4
3
2
1
Title
Title can be read
from 6 ft. away and
is quite creative.
Title can be read
from 6 ft. away and
describes content
well.
Title can be read
from 4 ft. away and
describes the
content well.
The title is too small
and/or does not
describe the content
of the poster well.
Content Accuracy
At least 7 accurate
facts are displayed
on the poster and no
grammatical errors.
5-6 accurate facts
are displayed on the
poster or there is 1
grammatical error.
3-4 accurate facts
are displayed on the
poster or there are 2
grammatical errors.
Less than 3 accurate
facts are displayed
on the poster or
there are more than
2 grammatical
errors.
Graphics Originality
Several of the
graphics used on the
poster reflect an
exceptional degree
of student creativity
in their creation
and/or display.
One or two of the
graphics used on the
poster reflect student
creativity in their
creation and/or
display.
The graphics are
No graphics made
made by the student, by the student are
but are based on the included.
designs or ideas of
others.
Graphics Relevance
All graphics are
related to the topic
and make it easier to
understand. All items
of importance on the
poster are clearly
labeled with labels
that can be read
from a distance of at
least 3 ft. away.
All graphics are
related to the topic
and most make it
easier to
understand. Most
items of importance
on the poster are
clearly labeled with
labels that can be
read from a distance
of at least 3 ft. away.
All graphics relate to
the topic. A few
items of importance
on the poster are
clearly labeled with
labels that can be
read from a distance
of at least 3 ft. away.
Graphics do not
relate to the topic.
Labels are too small
to view or are not
included.
Attractiveness
The poster is
exceptionally
attractive in terms of
design, layout, and
neatness.
The poster is
attractive in terms of
design, layout and
neatness.
The poster is
acceptably attractive
though it may be a
bit messy.
The poster is
distractingly messy
or very poorly
designed. It is not
attractive.
Use of Class
Time
Used time well
during each class
period. Focused on
getting the project
done. Never
distracted others.
Used time well
during each class
period. Usually
focused on getting
the project done and
never distracted
others.
Used some of the
time well during
each class period.
There was some
focus on getting the
project done but
occasionally
distracted others.
Did not use class
time to focus on the
project or often
distracted others.
Required
Elements
The poster includes
all required elements
as well as additional
information.
All required
elements are
included on the
poster.
All but 1 of the
required elements
are included on the
poster.
Several required
elements were
missing.
CATEGORY
Name: ____________________________
Hour: ____________
From Metals to Alloys to Colloids... A Coin-cidence?
Since civilization began, silver, gold, and copper have been three of the most
precious elements. Wars have been fought over these metals. People have spent
their live searching for the gleam of gold or the shine of silver hidden in the walls
of ordinary rock. What is it about these elements that make them so precious?
Directions: You and your group are to choose from the following topics to
research, and design a poster to display your findings.
Choices:
A. What properties do copper, silver, and gold have in common? How are
they different? Why is gold more valuable than copper? Historically, what
have been the uses for gold, silver, and copper? What are the
modern uses of these elements? Where are these elements
commonly found? Prepare a poster that highlights the properties
and uses of these elements.
B. What does the K in 14K gold stand for? It stands for Karat – a
measure of gold purity. Gold used in jewelry usually contains other
metals, such as silver or zinc. A combination of metals is called an alloy.
Research alloys of gold. What other metals are used to form gold alloys?
How do these properties of these alloys compare with the properties of
pure gold? Why do they not commonly use pure gold? Include a chart to
display the various Karats of gold comparing the prices of each and the
quality of gold. How do metal workers decide which metals to combine
and what proportions to use?
C. It wiggles. It jiggles. It tastes good. Fruity gelatin – what is it made of?
Gelatin is one example of a colloid. Find out more about this jiggly
substance. How is it made? What is it made of? What makes it a
colloid? You know it is used in food (JELLO), but what other
industries use gelatin? Create a poster to display your findings.
D. Alloys are combinations of metals that are dissolved into each other.
Design a poster that examines at least 4-6 metal alloys. Include the
name of the alloy, metals contained in them, properties of the alloys, and
uses of the alloy. Also, what new alloys are being investigated and why?
E. Aerogel??? What does the future hold for this substance? What is it?
What is it being used for? Is it expensive? What are some of the
properties of it? What makes it better than older products? Create a
poster highlighting everything you learn about aerogel and then come up
with your own potential uses of this product and why you would use this
product as opposed to others?