Scientific Method
Which is NOT part of the scientific method?
answer, conclusion, share data, observation
answer
This variable is recorded as data in the data table.
An educated guess based upon a prediction that can be tested.
hypothesis
Find the independent variable in the investigative question:
How does a pure protein meal vs pure carbohydrate meal affect blood sugar levels?
type of meal
Is this investigtive question qualitative or quantitative?
How does the amount of time a person listens to a song affect their like or dislike of the song?
WHY? What is being recorded?
qualitative
like or dislike of the song
Which is part of the scientific method?
share data, variables, controls, answers
share data
This variable is what the scientist changes.
An explanation made about the observation.
inference
Find the dependent variable in the investigative question:
How does the amount of time a person listens to a song affect their like or dislike of the song?
like or dislike of the song
What is the dependent variable?
How does the person's height affect their running speed?
Is this a qualitative or quantitative investigation?
speed
quantitative
Thie first step of the scientific method involves looking around and ___________________.
observing
These always stay the same in an investigation.
This data that is descriptive in nature, not numbers.
qualitative data
What is the dependent variable in the investigative question below?
How is the rate at which the cake bakes affected by the temperature of the oven?
rate of bake (time)
What is the dependent variable in this investigative question?
Do Cosmic Crisp or Fuji apples taste the best?
Is this investigation qualitative or quantitative?
Why?
qualitative, describes taste, not a number
After you analyze data and write a conclusion, what do professional scientists do?
What is the independent variable in this investigative question?
How does location of the plant affect its growth?
plant location
The variable that changes due to the independent variable, often recorded as data.
dependent variable
What is the independent variable in the investigative question below?
How is strength in the weight room affected by diet?
(change diet and record strength)
* VERY TOUGH QUESTION!
What is the independent variable in the investigative question?
How is heart rate affected by caffeine?
Is this a quantitative or qualitative investigation?
Why?
The amount of CAFFEINE can change
50mg, 100mg, 200mg etc..
quantitative-number of beats of the heart
What are the steps of the scientific method in order?
observation, question, hypothesis, experimentation, data analysis, conclusion and share data.
What is the dependent variable in this investigative question?
How many deer prefer apples to carrots?
number of deer
This is strongly supported by multiple lines of evidence, not just an idea in science.
theory
What is the dependent variable below?
How does the time it takes the student vary according to his/her age?
time
TOUGH QUESTION!
*What is the dependent variable in the investigative question below?
Which burger tastes the best?
*Is this investigative question qualitative or quantitative?
Why?
*What are 2 controls you would have?
*How would you eliminate bias so they don't know which burger is which?
taste
qualitative, descriptive in nature, no numbers recorded
controls: weather conditions, sales persons, same amount of customers, have burgers tasted at the same location, etc...
Have them taste the burger at the SAME LOCATION without them knowing which burger is which.