Physical Science
"scientia" means what
Knowledge
You can have more than one _________ in an experiment
variable
what is technology
application of science to help people
What is a standard
exact quantity that people agree to use for comparison
what is the density formula
Density = mass divided by volume
Physical Science deals with
matter and energy
is manipulated or changed by the scientist
independent variable
occurs when what the scientist expects changes how the results are viewed
Bias
mass is measured in
kilograms or grams
density is affected by
Temperature
An experiment always starts with...
an observation or question
the variable that is measured or observed
dependent variable
an explanation of things or events based on knowledge gained
scientific theory
what is the unit for density if it is a solid
grams per cm cubed
what is the density of water
1 g/mL
Data gathering can involve..
experimentation, field studies, surveys, and long-term observation
what is the control
standard by which the test results can be compared
what is a scientific law
statement about what happens in nature that seems to be true all the time
moles is the units for
amount of substance
what is the density of a 25g object with a volume of 5g/cm3
5g/cm3
observation and investigation
does not change when other variables change
constants
pure science vs applied science
pure science is studying it just to understand it.
applied science is taking knowledge and using it to make new things (applying it)
temperature is measured in
Kelvin
What is the density of a liquid that has a mass of 0.196g and a volume of 100mL?
0.00196g/mL