Scientific Method
Table and Graph
Hypothesis
Variables
Surprise!
100
What is the first step in the scientific method?
Question.
100
What variable is listed in the left column of a table?
Independent variable
100
What step of the scientific method do you predict a possible answer to a problem or a question?
Hypothesis.
100
What are the two types of variables stated in a hypothesis?
What is Independent and Dependent.
100
Which step of the scientific method is missing: Question Formulate a Hypothesis ______________ Observe and Record Analyze Results Make conclusion
Experiment.
200
What step of the scientific method do you test your hypothesis?
Experiment.
200
What kind of graph is best to represent these data: temperature changes throughout the year
Line graph
200
Putting my plant in the closet will decrease it's chance of living. What is wrong with this hypothesis?
it is missing "If" and "Then"
200
What is the variable that we measure that changes because of another variable?
What is Dependent Variable.
200
Sissy wants to test out between water, orange juice, cola and sprite which one freezes the first, what variable should she hold constant to make the experiment fair?
amount of liquid
300
What should you do if your experiment does not prove your hypothesis?
make another hypothesis
300
The dependent variable in this table is: mode of transportation number of students walking 5 biking 3 school bus 10 car 2
number of students
300
If you drink more milk will you get stronger bones? State a good hypothesis for this question.
If you increase the amount of milk you drink, then you will increase the strength of your bones.
300
What is the variable the experimenter intentionally change?
Independent Variable.
300
The ________________ involves a series of steps that are used to investigate how something works .
Scientific Method.
400
Data can be presented in a number of ways, they are
table, graph, image, video
400
What kind of graph best represent these data: mode of transportation number of students walking 5 biking 3 school bus 10 car 2
Bar/column graph
400
I wonder if you smoke more cigarettes, will you have a better chance of getting lung cancer? State a good hypothesis for this question.
If you increase the number of cigarettes you smoke, then you will increase your chance of getting lung cancer.
400
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.
400
The independent and dependent variables of an hypothesis are: Independent- soil temperatures, Dependent- plant growth. What would the hypothesis be?
If soil temperatures rise, then plant growth will increase.
500
If we say scientific method has 5 steps, they are
Pose a question Form a hypothesis Test hypothesis Analyze data Made conclusion
500
When is the best to use line graph, when is the best to use bar graph?
Line graph - when we want to see how something changes over time Bar graph - when we want to compare between different groups
500
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?
If I increase the amount of time I run, then my heartbeat will increase.
500
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.
Independent- practice shooting free throws, Dependent- making baskets.
500
Thinking about the hypothesis: If soil temperatures rise, then plant growth will increase. What might a control in this experiment be?
using the same potting soil, making sure both plants have an equal amount of light etc.
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