Variables
Is any factor, trait, or condition that can exist in an experiment.
variable
An idea or explanation that you then test through study and experimentation "an educated guess".
Hypothesis
This belongs on the top of every graph that you make.
a title
What can you never start your claim with?
Yes or No
Type of graph used for comparisons.
Bar Graph
What is being measured in an experiment?
the dependent variable
The information collected using specific methods for a specific purpose of studying or analyzing.
Data
What axis is the independent variable graphed on?
x-axis
At least how many points of evidence do you need to support your claim?
3
The group or individual used as a standard of comparison for checking the results of an experiment.
the control or control group
What is be changed between trials in an experiment?
the independent variable
What type of data is gathered by using the senses?
Qualitative data
What are the numbers called on the scales of your graph?
Intervals
Which component of CER should you always complete first?
Evidence
Type of graph used for graphing change over time
Line Graph
Justin wants to determine the effect of fertilizer on the growth of grass.
What are the independent and dependent variables?
Dep. Variable: Growth of grass
Quantitative data
What axis is the dependent variable graphed on?
y-axis
How many steps does a CER consist of?
3
Provides justification for why the evidence is important in supporting a claim.
Reasoning
A basketball coach thinks that a protein bar will increase the points his team scores. He splits his team into two groups of equal players. Half the team eats a protein bar for one week right before a game the other half does not eat the protein bar at all. He records his results.
Ind. Variable: eating protein
Dep. Variable: the points the team scores
Mobile gas company claims its gas last 50% longer and you will gas up your car less because of it. Interested, my husband tests out Mobile gas for four weeks and four tanks of gas. He records how the car runs and how many miles he goes without needing to fill up gas. He compares this to his old gas.
What is the qualitative data he will find?
What is the quantitative data he will find?
Qualitative: How the car runs
Quantitative:
How many miles driven before having to get has.
The number of weeks
The number of gas tanks
Ms. Ealy will put a graph on the board for you to answer a question for.
At 15 seconds what is the position of the object?
50 m
Which component of CER requires a written paragraph?
Reasoning
Billy wants to know if increasing his exercise will decrease the time it takes him to run a mile.
What is the independent and dependent variables?
Ind. Variable: Exercise
Dep. Variable: Time it takes to run a mile