Alchemy Unit
Investigation I:
Defining Matter
Lesson 1: Penny for Your Thoughts
Lesson 2: Whatsa Matter?
Lesson 3: Tools of the Trade
Lesson 4: All That Glitters
Alchemy Unit – Investigation I
Lesson 1:
Penny for Your Thoughts
Key Learning:
Matter is defined by its characteristics properties; anything that takes up space and has volume
Unit Essential Question: what
are physical and chemical
properties of matter?
Concept:
Define how
scientists
determine intrinsic
and extrinsic
properties of
matter
Lesson Essential Questions:
why are mass,
volume and
density important
in matter?
Concept:
Concept:
Concept:
Compare
properties of
matter
Scientist use rules
to conduct
investigations
Investigating
intrinsic
properties
Lesson
Essential
Questions:
How do scientist
use equipment
to conduct lab
investigations
Lesson
Essential
Questions:
What safety
precautions are
used in the
science lab?
Lesson
Essential
Questions:
How do we
calculate
mass, volume
and density?
Why are they
important?
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Essential Question
Define how scientists
determine intrinsic
and extrinsic
properties of matter.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
ChemCatalyst : Copy in your journal
Long ago, early scientists tried to turn
ordinary things into gold. This pursuit
was called alchemy and the people who
engaged in alchemy were called
alchemists.
• Do you think the alchemists were
successful in turning things to gold?
Explain your thinking.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Lab Safety Quiz
Answer Questions on a separate sheet of
paper.
YOU WILL NOT BE ABLE TO PARTICIPATE
IN LABS IF YOU FAIL THIS QUIZ!
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Safety is the number one priority in the
Science Lab. Do you agree?
1. Yes
2. No
0%
o
© 2004 Key Curriculum Press.
N
Answer Now
Ye
s
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Unit 1 • Investigation I
I know the location of the eyewash station,
safety shower, and fire extinguisher.
1. True
2. False
0%
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© 2004 Key Curriculum Press.
Fa
Answer Now
Tr
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Unit 1 • Investigation I
The Right-to-Know Law involves......
1. Knowing what is for
lunch.
2. The right to remain
silent.
3. The right to know about
the hazards you are
exposed to.
4. Knowing how much
wood a wood chuck
could chuck.
© 2004 Key Curriculum Press.
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Unit 1 • Investigation I
Its OK to wear contact lenses when working
with chemicals.
1.Yes
2. No
0%
o
© 2004 Key Curriculum Press.
N
Ye
s
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Unit 1 • Investigation I
Goggles must be worn when...
1. Working with chemicals
2. Working with a heat
source.
3. Working with glassware.
Answers 1 & 3 only.
Answers 1 & 2 only.
Answers 1,2, & 3.
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© 2004 Key Curriculum Press.
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Unit 1 • Investigation I
Its OK to make up your own experiment in
class as long as you are learning from it.
1. True
2. False
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© 2004 Key Curriculum Press.
Fa
Tr
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Unit 1 • Investigation I
If there is an accident (spill, breakage,
injury, etc.) you should...
1.Clean it up yourself.
2. Hide it from the
teacher.
3. If minor, ignore it.
4. Report it
immediately and
wait for
instructions.
l..
.
© 2004 Key Curriculum Press.
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Unit 1 • Investigation I
Its OK to return chemicals to their
original container.
1.True
2. False
ls
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0%
© 2004 Key Curriculum Press.
Fa
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Unit 1 • Investigation I
Proper lab attire includes….
1.Dangling jewelry.
2.Baggy Clothes.
3.Unsecured long hair.
4.Open-toed shoes.
5.All the above.
6.None of the above.
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© 2004 Key Curriculum Press.
Unit 1 • Investigation I
When disposing of chemical wastes…
1.Throw it all in the trash.
2.Dump it down the sink.
3.Leave it for the teacher
to clean up.
4.Follow instructions from
the teacher.
5.Eat or drink it.
it.
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© 2004 Key Curriculum Press.
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Unit 1 • Investigation I
Horseplay and practical jokes are permissible
in a lab setting. Do you agree?
1.Yes
2.No
0%
o
© 2004 Key Curriculum Press.
N
Ye
s
0%
Unit 1 • Investigation I
If I don’t understand the lab instructions, I
should…..
1.Ask the teacher.
2.Make up my own.
3.Do nothing.
4.Copy my friends
answers.
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© 2004 Key Curriculum Press.
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Unit 1 • Investigation I
When curious, I should smell substances
directly….
1.Yes
2.No
0%
o
© 2004 Key Curriculum Press.
N
Ye
s
0%
Unit 1 • Investigation I
I should identify unknown white powders by
tasting them….Yum-O.
1.True
2.False
ls
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© 2004 Key Curriculum Press.
Fa
Tr
ue
0%
Unit 1 • Investigation I
If I do not follow lab safety rules AND the
instructions of the teacher, the following will
happen...
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1.Nothing.
2.I will go to jail.
3. I will, possibly, fail the
assignment.
4. I will automatically fail the
course.
5. I will, possibly, lose lab
privileges.
6. Choices 3&5.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
I will follow all lab safety rules….
1.Yes
2.No
0%
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© 2004 Key Curriculum Press.
N
Ye
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Unit 1 • Investigation I
Penny For Your Thoughts Lab
What caused the penny to turn Silver?
What caused the penny to turn gold?
Do you think the penny is truly gold?
Explain a process you would use to determine
it’s true form.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Alchemy Unit – Investigation I
Lesson 2:
Whatsa Matter?
ChemCatalyst
Modern chemistry is defined as the study
of matter.
• What do you think matter is?
• Name two things that are matter and
two things that are not matter.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Notes
Here are some textbook definitions of
matter:
• Matter is anything that has mass and
volume.
• Matter is anything of substance in the
known universe.
• Matter is anything that takes up space.
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Mass & Volume
• Mass is the amount of matter in an
object substance. We measure mass
by measuring it on a scale or balance.
• Volume refers to the amount of space
occupied by a substance.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Properties of Matter
• The intrinsic property of a substance
is a property that doesn’t depend on
size and shape.
• It is generally not easy to determine
intrinsic properties from the
appearance of a substance.
• Ex. Reactivity, flammability, density
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Properties of Matter
Extrinsic Properties can be
observed qualitatively.
Ex. Color, size, shape,
texture
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Density
• Density is defined as the mass per
unit volume or how much “stuff”
there is in a certain space. Density is
an intrinsic property of matter.
D=mv
D= density (g/ml or g/cm3)
M= mass (g)
V= volume (ml or cm3)
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Check-Out
Which of the following can be classified as
matter according to our definition?
a) a beam of sunlight
b) an autmobile
c) an idea
d) your breath
e) rain
f) sadness
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Wrap-Up
• Matter is everything that takes up
space.
• Matter exists in many forms.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Alchemy Unit – Investigation I
Lesson 4:
All That Glitters
ChemCatalyst
In the year 1 B.C., King Hiero
commissioned the creation of a golden
crown. However, he didn’t believe that
the goldsmith used all gold. He asked
Archimedes to determine if the crown
was solid gold.
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
(cont.)
• Do you think Archimedes can
determine if the crown is solid gold by
putting it under water? Why or why
not?
• What happens to the level of the water
if you submerge a crown in the water?
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
The Big Question
• How can we use mass and volume to
prove whether or not a substance is
gold?
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
You will be able to:
• Find the mass, volume, and density of
solid objects.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Activity
Purpose: It is not always easy to tell one
form of matter from another. This activity
will show you how to differentiate
between different forms of matter by
examining density, one of the physical
properties of matter.
density = mass ÷ volume
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
(cont.)
Data and Calculations
Metal
Mass
(g)
Volume of
water
(mL)
Volume of
water with
metal (mL)
Volume of
metal
(mL)
2-inch long
gold-colored rod
2-inch long
silver-colored rod
4-inch long
silver-colored rod
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
(cont.)
Densities of metals
copper
9.0 g/mL
zinc
gold
aluminum
brass
7.1 g/mL 19.3 g/mL
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Check-In
In 1999 the United States Mint produced
a coin called the Golden Dollar. It
features an image of Sacagawea, the
famous Native American guide for Lewis
and Clark. It has a mass of 9.8 g and a
volume of 1.1 mL.
• What is the density of this coin?
• The density of gold is 19.3 g/mL. Is this
coin truly gold? Explain.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Wrap-Up
• Density is an intrinsic physical property
of matter. It is a measure of the mass
per unit of volume of a substance.
• One substance can be distinguished
from another by examining its intrinsic
physical properties.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I