Inspire Chemistry Chapter 1 (p. 1-18) Unit 1 Module 1
Problems
Density=Mass/Volume
Labels
Density=g/ml or g/cm3
Mass=grams
Volume=ml or cm3
What is the density if 100grams of the substance occupies a space of 20 ml?
Density=Mass/Volume or D=m/v
D= 100 g/20 ml
D=5g/ml
Cover the letter you are looking for and the other two letters will be the formula.
M
DV_
Temperature conversions
• oF=(?oC)9/5+32
• oC=(?oF-32)5/9
K= oC + 273
oC =K- 273
*Hint: The letters that come later in the alphabet are larger numbers.
Read p. 13 kg article and p.17 Hydrometers
Group questions
1. Name and describe/area of emphasis ten branches of Chemistry and then list an area of emphasis. P. 5
2. List the quantity for the base unit and the base unit with the proper label. P. 12
3. List the SI prefixes. P. 12
4.
Common prefixes:
Saying Prefix label Power of 10 Place
Terribly Tera T 1012 trillion
Giddy
Giga
G
109
billion
Mr.
Mega
M
106
million
K.
Kilo
K
103
thousand
Hollard
Hecta
h
102
hundred
Don’t
Decka
da
101
ten
You
Unit
?
100
zero
Dare
Deci
d
10-1
tenth
Call
Centi
C
10-2
hundredth
My
Milli
m
10-3
thousandth
Mom
Micro
µ
10-6
millionth
Nancy
Nano
n
10-9
billionth
Pancy
Pico
p
10-12
trillionth
If left up to me this is down right confusing!
*When you cross the line below each m/M you move three spots.**
*If there is only one letter, that is the unit!!
Chemistry –
the study of matter and the changes that it undergoes
Science –
the use of evidence to construct testable explanations and predictions of natural phenomena, as well as, the knowledge generated through this process.
(Use test to explain and predict phenomena to gain knowledge.)
Hypothesis –
a testable explanation of a situation or phenomena
Theory –
an explanation of a natural phenomenon based on many observations and investigations over time
Scientific law –
a relationship in nature that is supported by many experiments
Pure research –
used to gain knowledge for the sake of knowledge itself
Applied research –
used to solve a specific problem
Base unit –
a defined unit in a system of measurement that is based on an object or event in the physical world
Second –
the SI base unit for time
Meter –
the SI unit for length
Kilogram –
the SI base unit for mass
Kelvin –
the SI base unit for temperature
Derived unit –
a unit that is defined by a combination of base units
Mass=The amount of matter in the substance.
Weight= The gravitational pull on the matter.
Model= Visual, verbal, or mathematical explanation of a concept or idea.
*Models can be larger, smaller, or the same size as the object they represent.
*Bias= Conclusion based on previous thoughts or experiences instead of data.
SCIENTIFIC METHOD = A systematic approach to the solution of a problems.
1. OBSERVATION =
The use of one or more of the five senses to perceive an object or event.
2. *COLLECTING DATA =
Gathering and recording information based on observation.
A) QUALITATIVE DATA(opinion) = Data obtained by the senses.
B) QUANTITIVE DATA = Data dealing with numbers.
What do you see?
3. *ORGANIZING DATA =
Placing data in a logical order. (Graphs, charts, tables, or maps).
4. *CLASSIFYING –
A process of grouping objects, organisms, or phenomena into established schemes.
5. HYPOTHESIZING =
A process of forming a testable statement.
HYPOTHESIS = “Educated guess”.
6. *PREDICTING –
A statement in advance, based on data.
(“If-then” statement.”)
7. EXPERIMENTING – (experiment)
A process of testing a hypothesis or prediction by carrying out data gathering procedures.
CONTROLLED EXPERIMENT =
A type of experiment in which you have a control group and an experiment group that are IDENTICAL, except one area.
a. INDEPENDENT VARIABLE = What you change.
The factor in a controlled experiment that is different.
b. DEPENDENT VARIABLE = What you measure.
The factor that is different due to the independent variable.
Control= A standard for comparison.
8. *INFERRING =
The process of drawing conclusions on the basis of facts instead of direct perception.
9. *MODELING =
The process of constructing a representation of an object, system, or idea. **A model may be larger, smaller, or the same size as the object(s) it (they ) represent.**
10. *COMMUNICATION =
The sharing of information.