initial mass of mixture mass of iron recovered mass of 250 ml beaker mass of sand after drying mass...
DESCRIPTION
1. What is science? 2. What is chemistry? CP Chem ITRANSCRIPT
Initial mass of mixture
Mass of iron recovered
Mass of 250 mL beaker
Mass of sand after drying
Mass of beaker with salt (after evaporation)
Mass of salt recovered
Total mass recovered
A
B
C
D
E
F
G
E - C
B + D + F
1. What does an exothermic reaction feel like in lab?
2. What does an endothermic reaction feel like in lab?
Day 4 10-1
1. What is science?
2. What is chemistry?
CP Chem I
Our Definiton . . .
. . . the purpose of science:In the simplest terms, science
attempts to . . . EXPLORE and EXPLAINEXPLORE and EXPLAIN. . . the natural world.
How Does Science Accomplish Its
Goal?EXPLORE --
By making objective observations of events / phenomenon in nature.
How Does Science Accomplish Its
Goal?
EXPLAIN --
By applying the principle of cause and effect.
What is
Science?
What is Chemistry?Chemistry – study of the composition
of matter, and the changes that matter undergoes
Chemistry Is . . .
It is the study of MATTER.
OR
Matter Is . . .Anything that:•Takes up space•AND has mass
What Is This ‘Stuff’ We ’ve Called Matter?One way of defining matter is One way of defining matter is
as the stuff of which as the stuff of which everything is made.everything is made.
The Branches of theChemis - Tree
InorganicOrganicOrganic
Biochem.Biochem.Analytical
PhysicalPhysical
Organic chemistry – the study of most carbon containing compounds
Inorganic chemistry – the study of all substances not classified as organic, mainly those compounds that do not contain carbon
Physical chemistry – uncovers the physical laws underlying changes in matter
Analytical chemistry – the identification of the components and composition of materials – what’s there and how much
Biochemistry – the study of substances and processes occurring in living things
1. What is matter?
Day 6 10-5
2. Branch of chemistry that attempts to determine what’s there and how much =
What is our model for scientific inquiry?
Measure the
width of your
chemistry book.
1 2 3 4 5 6 7Always go one more place than marked!
__ __ __ . __ __ones
tens
tent
hs
Measure me 6.5
1 2 3 4 5 6 7
Measure me 7.00
Always go one more place than marked!
Same for
measuring liquids!
Always go one more place than marked!
102030
22
Organic Chemistry
Explore and Explain
Biochemistry
Chemistry
Analytical Chemistry
Physical Chemistry
Science
Inorganic Chemistry
Matter
Penn State
Notebooks
Review section 1.1 and complete #s 1, 2, 5, 6, and 7 on page 5 – Hand in before leaving
1. Stay in your seat and get your Chapter # 1 test out.
Day 1 10-6
1. Calculate and record your test percentage.
2. How did you prepare for the test (Be Specific!)?
3. Study (preparation) Plan for next test?
4.Set a goal:
A: you must improve by at least 2 percentage points.
B, C, or D: you must improve by at least 3 percentage points.
F: you must pass Day 1 10-6
What are the 5 branches of chemistry?
Inorganic
OrganiOrganicc
BiochemBiochem..Analytica
l
PhysicaPhysicall
A – small graduated cylinder
B – Big graduated cylinder
C – person
Read section 2 of chapter 3 and complete #s 23-33 on page 82
1. Get your lab out. What mini-experiments do you have left?
Day 6 9-30
1. Finish lab and complete postlab – lab packets are due tomorrow!
2. All make up work is due by Thursday 10-2!!!
3. Notebook Checks – volunteers today
Day 6 9-30