Test 1 Flashcards
What are the steps in the Scientific method in order?
- Make an observation
- Ask a Question
- Form a Hypothesis
- Design an Experiment
- Collect/Analyze Data
- Conclusion
- Repeat
What are the two types Hypotheses
Null Hypothesis
Data has no difference
EX- there is no difference in height between males and females
Alternate Hypothesis
Data is different
EX- there is a difference in height between males and females
What is the dependent variable.
The variable that will be measured, counted, for observed in respond to the experimental conditions that you set.
What is indepenent variable.
The single variable or experiment condition that will be manipulated.
Describe why it is important to usually have only one independent variable in an experiment.
To make it easier to determine which dependent variable is causing the effect on your study subject.
Why is replication important too include in an experiment
When multiple results are gather in an experiment, more evidence is available to support or reject your hypothesis and makes your conclusion stronger.
What is the control group of an experiment and why is it important?
A group in which the independent variable is held at an establish level or it is omitted; gives you a group to compare your results with.
P values are statistical values that
Are used to determine whether or not the hypothesis is supported or rejected.
what p value shows that your alternate hypothesis was supported and what does that mean.
Less than 0.5: there was a difference between the groups being tested
What p value shows that your null hypothesis was supported and what does that mean.
More than 0.5: there was no difference between the groups being tested.
What is the scientific name of our fast plan.
Brassica rapa (underline name.)
What are the 2 purposes of this fast lab experiment
To observe the life cycle of a typical flowering plant and to observe how traits are passed from parents to offspring.
