Controlled Experiments Flashcards
Steps of the scientific method
- State the problem
- Research
- Develop a hypothesis
- Test the hypothesis
- Analyze the results
- Communicate the results
Observation
Anything a person notices using their five senses
Qualitative
Qualities
Quantitave
Quantities
Controlled experiment
A test in which only one variable is changed at a time
Independent variable
What is being changed
Dependent variable
What is being measured
Control group
The factor being tested doesn’t change
Constants
All the factors that are kept the same
Write a problem correctly
The effect of [IV] on [DV]
Write a hypothesis correctly
If the [IV] is [how it’s changed], then the [DV] will [your prediction]
Continuous data
Data collected over a period of time (line graphs)
Discrete data
Different groups or categories are being compared (bar graphs)
If a data table is not provided
Construct one
x-axis
Label with IV and include units
y-axis
Label with DV and include units
The origin
Does not have to be (0,0)
Breaks in data
Are not shown with a squiggly line
The title of the graph
Should describe what is being depicted on both the x- and y-axes
When multiple sets of data are being represented
Create a key
Only use _____ for depicting data
Normal or colored pencils
