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Density (def.)
measure of the amount of matter (mass) that can fit in a given space (volume)
Density (alt.)
The ratio of mass of substance to it’s volume
Mass (def.)
Amount of matter of a object/substance
Volume (def.)
Amount of space an object/substance occupies
Matter (def.)
the atoms and molecules of every substnace
Volume (ques.)
Space occupies
Mass (ques.)
how its much made of
Mass is a measurement of
matter
More matter in ana mount of space =
greater density
Displacement Method (def.)
to determine the volume for irregularly shaped objects.
Formula of Density
Mass/Volume
What is the density of water
1g/mL
If you break an object of UNIFORM COMPOSITION in half what happened to the density?
It stays the same.
what is the volume of an solid object measured inWhen
cm³
what is the volume of liquid measured in
milliliters
When does displacement occur (in water test)
An object is immersed in a fluid, and the fluid level rises
(one of) Laws of Physics
no two objects can occupy the same space at the same time
Example of Law of Physics
can't walk through a wall
Metric System
Kilo, Hecto, Deca, Base, Deci, Centi, Milli
Kilogram abbreviation
kg
Meter abbreviation
m
Gram abbreviation
g
Milliliter abbreviation
mL
millimeter abbreviation
mm
Liter abbreviation
L
Kilometer abbreviation
km
Centimeter abbreviation
cm
Milligram abbreviation
mg
Deca- abbreviation
da
deci- abbreviation
d
Kilo- Unit
1000
Hecto unit
100
deca- unit
10
Base unit
1
What are the base section
Liter, Meter, gram
deci- unit
.1
centi- unit
.01
milli- unit
.001
Scientific Method
systematically reseaerch an answer to a question/problem
Steps of the scientific method
Observation, hypothese, experimental design, data collect/data analysis, conclusion, repeat
How do we do step; Observation
We use our senses from our environment
Hypothese (def.)
a predictive statement that can be tested experimentally
Requirements of: Hypothesis
Be testable, strong single statement
How is a hypothesis not like a educated guess
A statement that makes prediction based on problem being tested
Experimental Design must:
detailed procedure for the experiment must be created, include all equipment
Data collection must:
Take measurements to test hypothesis, organized, must be analyzed.
Data analysis (def)
Data are interpreted to make conclusions while looking for relationships between variables
What is the most useful form of data analysis
Graphing
Graphing is beneficial because
give visual, easy to understand representation of data.
Conclusion (def.)
states whether hypothesis has been accepted or rejected. explain why or why not supported.
A good conclusion will:
allow you to communicate your results with your peers, so they can attempt to replicate your results
Repeat (Scientific Method)
Experiment must be conducted by yourself and other several times before consensus can be determined
Mnemonic for the metric system
King Henry Died By Drinking Chocolate Milk
Mnemonic for scientific method
Our Questions Help Explain Data Collected Honestly Repeatedly
Explanation of Mnemonic for scientific method
Our → Observations
Questions → Lead to Questions
Help → Form a Hypothesis
Explain → Design an Experiment
Data → Collect and Analyze Data
Collected → Make a Conclusion
Honestly → Hypothesis is Accepted or Rejected
Repeatedly → Replication by others
Explanation of Mnemonic for Metric System
King → Kilo (k)
Henry → Hecto (h)
Died → Deca (da)
By → Base unit (meters, liters, grams)
Drinking → Deci (d)
Chocolate → Centi (c)
Milk → Milli (m)
density symbol
𝜌
What substance has the greatest density? Honey, oil, water?
Honey
what’s denser, water or alochol?
Water
What’s dense enough to let a candle float, a dif liquid or water?
water
Note 
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