Scientific Method 1
Tell the 1st step of the scientific method
Make an Observation
Define scientific method
a process that scientists use to better understand the worl around them
Identify the independent Variable in this question:
Does the amount of time watching T.V. affect the reading scores of fourth graders?
The amount of time tv is watched
Double points
Identify the independent Variable in this question:
How does drinking juice before bed affect how many hours you sleep?
How much juice is drank
What makes a good experiment?
An experiment that has only one variable that is changed so results are accurate
Tell the 2nd step of the scientific method
Develop a Question/Problem
This group shows the effect of the variable being tested
Dependent Variable
Identify the dependent Variable in this question:
Does the amount of time watching T.V. affect the reading scores of fourth graders?
The test scores
Identify the dependent Variable in this question:
How does drinking juice before bed affect how many hours you sleep?
How long they sleep
What may happen if a scientist involves too many variables in their experiment?
Their results won't be accurate
double points
Tell the 3rd step of the scientific method
Make a Hypothesis
double points
This is the one variable that is changed
Independent Variable
double points
Identify the Control Group in this question:
Does the amount of time watching T.V. affect the reading scores of fourth graders?
The fourth graders that don't watch tv
Identify the Control Group in this question:
How does drinking juice before bed affect how many hours you sleep?
The people that don't drink juice before before bed
Why is it important that scientists share their results?
So that other scientists can repeat the experiment and make sure the results are accurate
Tell the 4th Step in the scientific Method
Design an Experiment
What is a possible answer to a scientific question
hypothesis
Identify the Experimental Group in this question:
Does the amount of time watching T.V. affect the reading scores of fourth graders?
The fourth graders that watch tv
Identify the Experimental Group in this question:
How does drinking juice before bed affect how many hours you sleep?
The people that drink juice before bed
Is this a good experiment? Why?
Ms. Wagner loves to eat tomatoes. She wants to plant a garden and is trying to figure out how to grow plants with more tomatoes. She plants three different pots of tomato plants and gives them different amounts of fertilizer. She keeps everything else the same (the amount of water, the amount of soil, amount of sun the plants get). For one month, she records how many tomatoes each plant produces.
Yes because she kept everything the same and only changed one variable
Tell the last 4 steps of the Scientific Method in order
5. collect data
6. analyzing Results
7. Make a Conclusion
8. Share your Experiment
Tell the difference between scientific theory and law
A scientific theory cannot be tested through an experiment but there is some scientific evidence to back up the theory a law has been tested and proven multiple times by getting the same results
Create a hypothesis for this question in if then form:
Does the amount of time watching T.V. affect the reading scores of fourth graders?
If the fourth graders watch more tv, then their test scores will be lower
Alternate answerd with this format are correct too
Create a hypothesis for this question in if then form:
How does drinking juice before bed affect how many hours you sleep?
If you drink more juice before bed then you will sleep less
Alternate answers in this form are accepted
Is this a good experiment?
A dog owner wants to test how exercise affects how dog sleep. His hypothesis was If a dog has more hours of exercise, then the number of hours he sleeps will increase because he used more energy exercising.He tested this on the three dogs a cocker spaniel, a pitbull, and a german shepard. He was careful to give his dog the same amount of food on the days he did the experiment.
No he used too many different breeds