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Dimensional Analysis
Science vs. Pseudoscience
Scientific Method
Laws, Theories, Models
Density
100
How many meters (m) are in a kilometer (km)?
1000 m
100
What is a collection of beliefs or practices mistakenly regarded as being based on scientific method.
Pseudoscience
100
Identify the Independent Variable for the following hypothesis: "If the temperature of a soda can is lowered, then the soda will contain fewer bubbles, because colder liquids contain more dissolved gas."
Independent Variable= Temperature of the soda can
100
What is a well supported Explanation?
A Theory
100
What is the formula for Density?
d=m/v
200
How many milliliters (mL) are in a Liter (L)?
1000 mL
200
SCIENCE or PSEUDOSCIENCE?.....The study of Astrological signs (libras, scorpios, cancers, aries) qualifies as a science or a pseudoscience?
Pseudoscience
200
Identify the Dependent Variable for the following hypothesis: "If the temperature of a soda can is lowered, then the soda will contain fewer bubbles, because colder liquids contain more dissolved gas."
Number of Bubbles
200
What is a well-supported description?
A Law
200
What does the "m" stand for in the density formula?
The "m" stands for mass
300

How many seconds are there in a day?

60 s x 60 min x 24 hrs = 86400 s

300

SCIENCE or PSEUDOSCIENCE?

Hypotheses and theories are often modified or discarded whenever new or better observations or experiments no longer support them.

SCIENCE

300
After forming a question and doing research, what should a scientist do as the next step of the Scientific Method?
Form a Hypothesis.
300
What type of model is a map?
A physical Model.
300
SINK or FLOAT?..... Would an object with a density of 2.3 g/mL sink or float in water (density= 1.0 g/mL)?
The object would SINK
400

How many cubic centimeters are there in a cubic meter?

100 cm x 100 cm x 100 cm =1,000,000 cm³

400
YES OR NO?..... Can the following question be answered by means of a scientific method?: 1) Does the mass of an object have an affect on its acceleration?
Yes, it can.
400
Make a hypothesis with the following variables: Independent variable= Weight of the Car Dependent Variable= Gas Mileage of the Car
IF the weight of the car increase/ decreases, THEN the gas mileage of the car will increase/ decrease, BECAUSE heavier cars require more gas/ lighter cars require less gas.
400
Is the following assertion a LAW or a THEORY? E=mc^2 Energy is equal to the mass of an object times the velocity of light, squared.
A Law?
400
Find the density of an object with a mass of 34 g and a volume of 13 mL.
2.62 g/mL
500

Convert 1,530,050 centimeters (cm) to kilometers (km)

15.3 km

500
What is the difference between Pseudoscience and Science?
Pseudoscience addresses questions that cannot be validated by a scientific method. Science addresses questions that can.
500
Name the six steps of the Scientific Method.
1) Ask a question (State the Problem) 2) Do some Research 3) Form Hypothesis 4) Perform the Experiment 5) Analyze the Data 6) Make a Conclusion
500
What is a limitation of a model?
1) Models only represent a portion of a system? 2) Models are simplified versions of real systems. 3) Models are not 100% accurate
500

DENSITY and SINK/FLOAT?.... 1) Find the density of an object with a mass of 2 g and a volume of 3.6 mL. 2) Would this object float in water or sink in water?

0.55 g/mL, it would FLOAT