How many steps are there in the scientific method?
7 steps
100
What type of animal were the Keene High School students studying?
Mussels.
100
What form is data normally in?
Numerical form.
100
What is a sample size?
The number of objects or events studied when producing statistics or data.
100
What value has to do with something beautiful or pleasing?
Aesthetic
200
Something that is based on observations and is a testable theory.
Hypothesis
200
What 2 groups were used in the study?
Experimental and control group.
200
What is one type of graph that can be used to illustrate data?
Bar graph, pie chart, bell curve.
200
What is the danger of using a sample size that is too small?
A small sample size does not represent the population as a whole.
200
What value has to do with money and jobs?
Economic
300
How many variables are tested in an experiment?
One variable.
300
What were the students attempting to study? (hint: the effects of...)
The effects of phosphate.
300
What are statistics?
Collection or accumulation of data in numerical form.
300
If a coin is flipped 344 times, what is the sample size?
344
300
Explain the recreational value.
Leisure or fun activities.
400
What is used to illustrate data?
A graph (pie chart, bar graph, bell curve, etc)
400
What steps did the students take in order to ensure the scientific validity of their study?
They ensured that all conditions in the 2 aquariums were identical (same water temperature, food, hours of sunlight).
400
What type of distribution does a bell curve show?
Normal or even distribution.
400
What is the name of the science of showing data on a map?
GIS, or Geographic Information System
400
How many values can affect environmental decisions?
9
500
What mathematical tool is used to help scientists reach conclusions?
Statistics.
500
The students hypothesized that the mussels were dying due to the phosphate in the water. How would you change your hypothesis if mussels in both aquariums died during the experiment?
Test other variables (water temperature, amount of food, hours of sunlight, etc)
500
Carefully draw an example of a bell curve.
(illustration of bell curve)
500
What local company is among the world's leaders in GIS (and what city)?