Variables
Scientific Method
Testable Question
Control/Experimental Group
Observation / Inference
100
This is the variable that is kept the same/constant throughout the experiment
What is a controlled variable?
100
This part of the Scientific Method where the scientist makes an educated guess about what might happen during the experiment.
What is a hypothesis?
100
Does fertilizer make a pea plant grow taller (height)? Testable or not?
What is testable
100
What is the control group? How does the presence of the secret ingredient in the tooth paste affect the quality of breath?
What is the group without the secret ingredient?
100
Mr. Jones has blue eyes Observation or inference?
What is an observation?
200
This is the variable of the experiment that was changed on purpose.
What is an independent variable?
200
This part of the Scientific Method involves sharing the findings of the experiment with others.
What is a conclusion/discussion?
200
Does changing the height of the ramp affect the speed of the car going down the ramp? Is this testable? If so, what is the independent variable?
What is testable? What is the height of the ramp?
200
What do you call when a group of people receive a sugar pill instead of the actual pill?
What is the placebo effect?
200
The bag containing laundry smelled nasty Observation or inference?
What is an inference?
300
The variable that is affected by the independent variable. This variable is measured during the experiment.
What is a dependent variable?
300
This part of the lab report gives a detailed list of what to do during the experiment.
What is a procedure/method?
300
Does the temperature of water affect the time it takes a sugar cube to dissolve? Is it testable? If so, what is the dependent variable?
What is testable. What is the time it takes for the sugar cube to dissolve?
300
I grew two apple trees over the summer. One tree received fertilizer and the other one did not. The tree that was fertilized grew more apples. The group that received fertilizer represents which group?
What is an experimental group?
300
What are the two main categories of observation?
What is quantitative and qualitative observation?
400
I hypothesize that more birds will come to my back yard if I install a bird feeder. What is the dependent variable?
What is the number of birds?
400
What are the two criteria of a testable question?
What is measurable and specific?
400
Make a testable question: Does changing ______________ affect ___________?
depends on the answer
400
Question: What is the effect of different temperatures on sunflower plant growth? Give examples of 2 experimental groups
What is 35 degrees Celsius and 15 degrees Celsius?
400
Give an example of an observation and inference.
depends of answer
500
Testable Question: Does changing the height of the ramp affect the speed of the car going down the ramp? What are 3 controlled variables?
What is the same type of car, same ramp surface, same driver?
500
Draw a diagram including all of the steps in the scientific method.
Testable Question Background Hypothesis Methods/Procedure/Materials Data Collection Data Analysis Conclusion/Discussion
500
Question: Will a rocket go higher? Changing our non-testable question to a testable question
Will changing the size of a rocket affect how far the rocket fly?
500
A control group is the group that receives no treatment of the independent variable, but what is the other definition of a control group?
What is a group that receives the standard treatment?
500
Record 5 observations of the classroom.
Depends on answer