HOW TO DISTINGUISH BETWEEN INDEPENDENT AND DEPENDENT VARIABLES

1. HOW DO I IDENTIFY INDEPENDENT VARIABLES?
2. WHAT ARE THE REASONS FOR THE SEASONS?
3. WHAT IS THE LAW OF SUPERPOSITION?

HOW DO I IDENTIFY INDEPENDENT VARIABLES?

IT IS ONE PHYSICAL CHARACTERISTIC THAT I CHANGE IN MY INVESTIGATION TO FIND 
OUT IF IT WORKED.  The book states it is a factor that is manipulated by an 
investigator in an experiment.  The dependent variable is the factor you 
measure as an outcome of your experiment. It depends on the independent 
variable you changed.   Ex.  time (s), mass (g), # of 
something, volume (mL), etc.

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WHAT ARE THE REASONS FOR THE SEASONS?

1. The tilt of the Earth's axis which allows direct sunlight to hit Northern 
Hemisphere during the summer solstice and direct sunlight to hit the Southern 
Hemisphere during the winter solstice
2. REVOLUTION AROUND THE SUN

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WHAT IS THE LAW OF SUPERPOSITION?

The Principle of Superposition: As layers accumulate through time, older 
layers are buried beneath younger layers. If geologists can determine which 
way was originally �up� in a stack of layers, they can put those strata in 
the correct historical order. Super as a prefix means above

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