Experimental Design
What is the first step in the scientific method?
What is Question.
What part of a lab report can include the description of what you observe?
Results section.
What step of the scientific method do you predict a possible answer to a problem or a question?
What is Hypothesis.
In an experiment what are the variables that are not being studied that are held constant so that they do not influence the experimental outcome called?
Control
Which step of the scientific method is missing: Question Formulate a Hypothesis ______________ Observe and Record Analyze Results Share the Results
What is Experiment.
EXTRA POINTS
What is Experiment.
What are two requirements for a test question in a lab report?
Specific and testable.
A plant in my closet will not grow. What is wrong with this hypothesis?
What is... it is missing "If" and "Then" and an explanation of what you are testing.
What is the responding variable or variable that represents the data collected?
What is Dependent Variable.
If chocolate is given to teachers, then the amount of homework will decrease. Write a test question for this hypothesis.
What will happen to the amount of homework given if chocolate is given to teachers?
What step in the scientific method do you support or reject your hypothesis?
Conclusion
Daily Double
Line Graph
If you drink more milk will you get stronger bones? State a good hypothesis for this question.
What is...If you increase the amount of milk you drink, then you will increase the strength of your bones.
What is the term we use to describe the variable that represents what the experimenter changes?
What is Independent Variable.
EXTRA POINTS
If I observe the effects of acid rain on a population of fish, then I think that the population of fish will decrease.
What are two ways you can present results?
Graphs, Data Tables, Observations
What part of a lab report includes your error analysis?
Conclusions
Daily Double
What is...If you increase the number of cigarettes you smoke, then you will increase your chance of getting lung cancer.
What are the independent and dependent variables of the following experiment? If plants are watered, then growth height will increase.
Independent: plants watered or not watered, dependent: plant growth/ height
List the independent and dependent variables in the following hypothesis. If soil temperatures rise, then plant growth will increase.
What is...Independent-soil temperatures, Dependent-plant growth.
List the 5 steps of an experimental design that we reviewed yesterday.
Question, Hypothesis, Identify Variables, Results and Conclusions.
When you are collecting data, why should you conduct multiple trials?
In case there is error in your data.
Read the following experiment and state a good hypothesis. I am doing a test to see if there is a connection between how long you run and how fast your heart beats. I will be performing an experiment where a person will run for a 1 minute and I will check their heartbeat. Then they will run for 2 minutes and I will check their heart rate. I will do this up to 6 minutes and see if there is a connection. What do you think my hypothesis should be?
What is...If I increase the amount of time I run, then my heartbeat will increase.
Find the independent and dependent variables in the following experiment: If you increase the number of times you practice shooting free-throws, then you will increase your chances of making a basket every time.
What is Independent- practice shooting free throws, Dependent- making baskets.
Thinking about the hypothesis: If soil temperatures rise, then plant growth will increase. What might a control in this experiment be?
What is... using the same potting soil, making sure both plants have an equal amount of light etc.