Veritable Variables
Hypotheses and Experiments
Rugged Relationships
Expanding Ecosystems
Anything Goes
100
What do we call the variable we change?
The independent variable
100
What do we call the group that receives the treatment?
Experimental group
100
What is the relationship called when both variables increase at the same time?
Direct relationship
100
What do we call all the organisms of a certain species in an area?
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Population
100
What do we call tiny organisms too small to see with the human eye?
Microorganisms
200
What do we call the variable that we measure?
The dependent variable
200
What do we call the group that does NOT receive the treatment?
Control group
200
What is the relationship called when one variable increases while the other variable decreases?
Inverse relationship
200
What do we call the collection of all the different organisms in an area?
Community
200
What causes infections in humans?
Microorganisms
300
What do we call a factor that stays the same (does not change) throughout an experiment?
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Control
300
What format do we use to write a hypothesis?
If... then... because...
300
What do we call a relationship where one variable changes but the other variable stays the same?
Constant relationship
300
What do we call a complex network of different communities of organisms?
Ecosystem
300
What process caused this plunge pool to form at the bottom of this waterfall?
Erosion
400
How many variables should we change per experiment?
Only one
400
Write a hypothesis using the correct format for the given variables:
IV: Level of sugar eaten
DV: Activity level
Many answers
Example: IF you eat lots of sugar, THEN you will be very active BECAUSE the sugar provides you with an energy rush.
400
Give an example of a direct relationship in the real world
Many possibilities — more sugar causes more cavities, more sunlight causes more plant growth, etc.
400
What do we call all the living things on Earth, combined?
Biosphere
400
Why are watersheds important to human life?
They provide clean, abundant water for us to drink, bathe with, use in sewage systems, etc.
500
Between IV and DV, which is the cause and which is the effect?
IV is the cause
DV is the effect
500
Angel and Rashad conduct an experiment where Angel plays Fortnite for 1 hour, while Rashad plays Fortnite for 2 hours. They then measure their level of happiness on a scale from 1 to 10.
Identify at least 3 possible constants in this situation.
Many examples
They play the same game (Fortnite)
They play at the same time of day (e.g. evening)
They play on the same platform (e.g. PS4)
500
Give an example of a constant relationship in the real world
Many possibilities — for instance, as you drink more water, there is no effect on the amount of rain that falls from the sky
500
What process is taking place here?
Ecological succession
500
Describe how New York City gets its water
Water comes from watersheds in upstate New York, is stored in reservoirs, channeled through aqueducts, and is delivered through pipes to New York City