Water and water measurments. (ex. density of water is 1)
How reliable is a theory?
There is no higher level of affirmation.
Laws are true how much of the time?
100%
Good theories become laws.
T/F
FALSE!!!!
Evidence is....
Facts that are found to support a hypothesis.
Direct evidence is....
Present and accessable physically.
Indirect evidence is.....
Unnacessable. We rely on this when it is impossible to actually be there during certian events or circumstances.(too slow, to long ago, can't go in person)
Spectrocipy is....
To measure light from planets and analize their data.
Quantitative info is....
Numerical in nature
Qualitative info is....
somewhat opinionated info, cannot be measured. (ex. smell, taste, ect.)
The things that change in your experiment
variables.
Independant variable
what you change
Dependant variable
Expected to change as a result of the independant
Constant
Things in your experiment that shouldn't change.
Interveining
things that could possibly effect the experiment in a way other than the independant.
Something left alone in your experiment so you can make a comparison
Control
Every time the independant variable is tested
trial
How many independant variables there are
sample size
Numbers, measurements or results of your trials.
Data
Anything that has mass and takes up space
Matter
Substances that cannot be reduced to simpler substances
elements
The center of an atom
nucleus
Posotive and make up part of the nucleus
protons
No electrical charge, and bound to nucleus with protons