alchemy unit
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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: - PowerPoint PPT PresentationTRANSCRIPT
Alchemy Unit
Investigation I: Defining MatterLesson 1: Penny for Your ThoughtsLesson 2: Whatsa Matter?Lesson 3: Tools of the TradeLesson 4: All That Glitters
Alchemy Unit – Investigation I
Lesson 1:
Penny for Your Thoughts
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
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
Concept:
Compare properties of matter
Concept:
Scientist use rules to conduct investigations
Concept:
Investigating intrinsic properties
Lesson Essential Questions:
why are mass, volume and density important in matter?
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?
Yes N
o
0%0%
1. Yes
2. No
Answer NowAnswer Now
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
I know the location of the eyewash station, safety shower, and fire extinguisher.
Tru
e
Fal
se
0%0%
1. True
2. False
Answer NowAnswer Now
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
The Right-to-Know Law involves......
Knowin
g what
is fo
r ...
The
right
to re
mai
n si..
.
The
right
to k
now
ab...
Knowin
g how m
uch...
0% 0%0%0%
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.
Answer NowAnswer Now
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Its OK to wear contact lenses when working with chemicals.
Yes N
o
0%0%
1.Yes
2. No
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Goggles must be worn when...
Wor
king
with c
hemic
als
Wor
king
with a
hea
t ...
Wor
king
with g
lass
ware.
Answ
ers
1 & 3
only
.
Answ
ers
1 & 2
only
.
Answ
ers
1,2,
& 3
.
0% 0% 0%0%0%0%
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.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Its OK to make up your own experiment in class as long as you are learning from it.
Tru
e
Fal
se
0%0%
1. True
2. False
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
If there is an accident (spill, breakage, injury, etc.) you should...
Cle
an it
up y
oursel
f.
Hid
e it
from
the
teac
her.
If m
inor,
ignore
it.
Rep
ort i
t im
med
iate
l...
0% 0%0%0%
1.Clean it up yourself.2. Hide it from the
teacher.3. If minor, ignore it.4. Report it
immediately and wait for instructions.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Its OK to return chemicals to their original container.
Tru
e
Fal
se
0%0%
1.True
2. False
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Proper lab attire includes….
Dan
glin
g jewel
ry.
Bag
gy C
loth
es.
Unse
cure
d long
hai
r.
Open
-toed
sho
es.
All
the
above
.
None
of the
abo
ve.
0% 0% 0%0%0%0%
1.Dangling jewelry.
2.Baggy Clothes.
3.Unsecured long hair.
4.Open-toed shoes.
5.All the above.
6.None of the above.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
When disposing of chemical wastes…
Thro
w it a
ll in
the
trash
.
Dum
p it d
own the
sink.
Lea
ve it
for t
he te
ache.
..
Follo
w inst
ruct
ions
f...
Eat
or d
rink
it.
0% 0% 0%0%0%
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.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Horseplay and practical jokes are permissible in a lab setting. Do you agree?
Yes N
o
0%0%
1.Yes
2.No
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
If I don’t understand the lab instructions, I should…..
Ask
the
teac
her.
Mak
e up
my
own.
Do n
othin
g.
Copy
my
frien
ds an
s...
0% 0%0%0%
1.Ask the teacher.
2.Make up my own.
3.Do nothing.
4.Copy my friends answers.
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
When curious, I should smell substances directly….
Yes N
o
0%0%
1.Yes
2.No
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
I should identify unknown white powders by tasting them….Yum-O.
Tru
e
Fal
se
0%0%
1.True
2.False
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
If I do not follow lab safety rules AND the instructions of the teacher, the following will happen...
Noth
ing.
I w
ill g
o to ja
il.
I w
ill, p
ossi
bly,
fail
th...
I w
ill a
utom
atic
ally
fail.
..
I w
ill, p
ossi
bly,
lose
la...
Choic
es 3
&5.
0% 0% 0%0%0%0%
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….
Yes N
o
0%0%
1.Yes
2.No
© 2004 Key Curriculum Press.
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.
Alchemy Unit – Investigation I
Lesson 2:
Whatsa Matter?
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
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
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.
Notes
(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.
Alchemy Unit – Investigation I
Lesson 4:
All That Glitters
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
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
• 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?
(cont.)
© 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
Data and Calculations
Metal Mass
(g)
Volume of
water
(mL)
Volume of
water with
metal (mL)
Volume of
metal
(mL)
2-inch longgold-colored rod
2-inch longsilver-colored rod
4-inch longsilver-colored rod
(cont.)
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation I
Densities of metals
copper zinc gold aluminum brass
9.0 g/mL 7.1 g/mL 19.3 g/mL
(cont.)
© 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.