Scientific Method 1
Scientists notice something around them. They use their 5 senses.
Observation
The penny will hold less soapy water than clear water.
Hypothesis
The factor that is changed
Independent Variable
Ahmed is conducting an experiment to test how different types of fuel will affect a cars performance. What is the independent variable in this experiment?
The types of fuel
A prediction and a hypothesis are based on....
Observations
Based on their observation scientists ask.....
Ask a question
I Counted the number of drops of clear water would fit on a penny. Then I counted the number of drops of soapy water would fit on a penny. I did each of these 3 times.
Test Hypothesis
The clear water and soapy water.
Independent Variable
Khaled sets up an experiment to see if changing the height of a ramp affects the distance a ball rolls off the ramp. What is the independent variable in this experiment?
Height of the ramp
A prediction is a
guess
Scientists develop an investigation to see if their hypothesis is correct or not.
Test the hypothesis
The water formed a dome like shape on the penny
Observation
The thing you are measuring.
Dependent variable
Saif wants to know if the size of a wand will make bigger bubbles. Which variable needs to remain constant?
Type of soap
A possible explanation for and observation that can be tested
Hypothesis
After the data is reviewed scientists state if their hypothesis is correct or not.
Conclusion
I counted the number of drops and recorded it in my table.
Collect Data
Any factor in an experiment
Variable
Khaled sets up an experiment to see if changing the height of a ramp affects the distance a ball rolls off the ramp. What is the dependent variable in this experiment?
Distance the ball rolls
A gummy worm has 18 segments. Is this qualitative or quantitative data?
Quantitative
During and after the experiment the scientists record and measure their observations.
Record and study Data
I was correct, the penny held less soapy water than clear water.
Conclusion
In the lab you notice that the mealworms crawling slowly. This is a _____________ description.
Qualitative
Ahmed is conducting an experiment to test how different types of fuel will affect a cars performance. What is the control variable in this experiment?
The type of car
Which is an observation:
Football is fun.
Cats are the best animals
The sky is blue.
The sky is blue