CATALYST Do you think chimpanzees can learn American Sign Language? How about use a computer? Why or why not?
Meet Jane Goodall…
This is a series of steps that scientists use answer questions and solve problems
(this is a mnemonic device)
Six: State the Problem
The scientist identifies the question or subject that he/she wishes to study
Great: Gather Information
The scientist researches the subject that he/she is studying.
Places to do research: library, internet, encyclopedia, television, etc.
Farmers: Form Hypothesis
A hypothesis is the scientist’s educated guess or best guess about what will happen in the experiment.
Usually has the words “If... Then”
IF I eat too much, THEN I will get sick
Inference – a logical interpretation based on prior knowledge or experience (Ex. You see a window broken and a baseball on the floor next to the shattered glass. You can -infer- that a baseball broke your window)
Plant: Perform Experiment
Scientists develop a way to test their hypothesis
Independent Variable (manipulated) : part of the experiment that can be changed or controlled
Dependent Variable (responding) : What is measured in the experiment
Control –what you keep the same. A good experiment only changes one thing!
All: Analyze Data
Scientists compile data into charts and graphs
This helps make sense of the information taken from the experiment
Quantitative – numbers
Qualitative – description
X –axis is the dependent variable
Y-axis is the independent variable
Day: Draw Conclusions
Scientist decides whether the original hypothesis was correct.
If the answer is “ YES ” then you are done
If the answer is “ NO ” then a new hypothesis is made and you repeat the experiment