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Scientific Method
Data
Conclusion
Vocabulary
100
The height of bean plants depends on the amount of water they receive. What are some controlled variables?
dirt, location, season, purity of water
100
Which step comes first?
Observation
100
What is data?
results of the experiment/ numbers
100
What is a conclusion?
It sums up the results of your lab and tells if your hypothesis is correct.
100
Should a questions be an opinion?
No
200
The higher the temperature of the air in the oven, the faster a cake will bake. What is the independent variable?
temperature
200
What 3 things do you need to include in a "good" hypothesis?
1. Guess 2. How you are going to test it 3. What observation backs up your reasoning
200
What is the process of adding up the numbers in a column and then dividing by the amount of numbers you added called?
average
200
Why is it important to write a conclusion?
It is important to remind yourself of the results of your test and communicate it to others.
200
What is data?
It is the numbers or results of your experiment.
300
An investigation found that more bushels of potatoes were produced when the soil was fertilized more. What are the independent and dependent variables?
IV: fertilization of soil DV: number of bushels
300
What comes before experimentation?
hypothesis
300
Why do you need to do multiple test of the exact same process?
So that you have more numbers in case there are any outliers. Then you can take an average number which is more accurate than a single number
300
What 2 thing do you need to include in every simple conclusion (not the really long one we typed up)?
1. Tell if your hypothesis was correct 2. Data!!
300
Define Dependent Variable.
It is the result of the experiment (what you put in your chart). It is dependent on the independent variable.
400
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. What are the independent and dependent variables?
IV: different amounts of lead DV: Amount of pollution
400
What would be a good scientific question for the following: A ramp, a can of coke, a bottle of coke, and a timer
Would the can or bottle go down the ramp faster?
400
What are some observations about the following chart? (Time to finish line) Red Car 20 sec Blue Car 35 sec Yellow Car 15 sec
Any observation that is a fact
400
In the following experiment, what are some variables that should have been controlled? A person plants 3 plants and waters them with different types of soda. At the end of a month, they measure which grew the tallest.
type of plant, soil, amount of time, amount of sunlight
400
What does independent variable mean?
The variable that you choose or change at the beginning of an experiment.
500
How would you test the growth of corn plants in moist soil versus growth of corn plants in dry soil? What variables would you control
You would plant several plants in moist soil. You would also plant several plants in dry soil. Type of soil, fertilization, amount of sun per day, season, type of corn
500
List all 7 steps of the scientific method in order.
Observation, question, hypothesis, experiment, analyze data, conclusion, communicate
500
How did we analyze numbers in our labs?
taking an average
500
Why is it important to include the variables that could have effected your conclusion?
It is important because your numbers/ test might not really prove your hypothesis.
500
What are the procedures?
The steps you go through when you are doing an experiment.