Vocabulary 1
What is dogma?
appearance of something that is false
What is continuous, discrete and categoric data?
continuous- data that can have any value such as length or temperature.
categoric- words such as hot or cold
discrete- only whole numbers
What is density
a measure of the amount of matter that occupies a given amount of space.
does temperature and density have an indirect or a direct relationship?
indirect relationship
what graph do you have to use if both your independent and dependent data are continuous data?
line graph
What is pseudo science?
fake science e.g: astrology
What is an instrument?
any device used to measure or aid the senses in making observations
Do shape and size affect density?
NOOOOOOOOO
does pressure and density have an indirect or a direct relationship?
direct relationship
what graph do you have to use if your independent data is categoric?
Bar graph
What is observation?
information gained by the 5 senses and are measurements.
What is classification?
to group things with similar characteristics to make them easier to understand
what is the formula for density?
d=m/v
name 2 factors affecting density
temperature and pressure
For what types of data are pie charts used?
discrete or categoric data
What is inference?
interpretations, conclusions or explanations based on observations and are predictions
What does it mean for something to be accurate?
What is the unit for density?
g/cm3, g/cc, g/mL
How does temperature affect density?
as temperature increases, density decreses as higher temperatures seperates molecules.
Name 3 things a plan has to include
- scientific question that they are trying to answer
-independent and dependent variable
-prediction
- risk assesment
-equipment needed
-how to use equipment to collect accurate and precise data
What are measurements
comparing an unknown amount to a known amount
What does it mean for something to be precise?
it means that you get similar results if you repeat the experiment
What instrument is used to measure density?
hydrometer
how does pressure affect density?
as pressure increases, density increases as pressure makes molecules come closer
The independent variable is on the - axis and the dependent variable is on the - axis on bar chart.
The independent variable is on the x axis and the dependent variable is on the y axis on bar chart.