scientific method practice-CP

What is data?

• an answer

• an educated guess or prediction

• numbers only

• information

What is a hypothesis

• A question

• An answer

• An educated guess or prediction

• An educated response

You have made your educated guess, a hypothesis, now what do you do?

• Collect data

• Plan & perform your experiment

• Ask a question

• Analyze data

While doing your experiment, you should be ....

• Analyzing data

• Making a hypothesis

• Collecting data

• Researching your question

Once you are done with your experiment and have collected all of your data, you are ready to...

• Research your question

• Make a hypothesis

• Come to a conclusion & report your findings

• Analyze your data

Once you have analyzed your data, you are now ready to...

• Plan and perform another experiment

• Collect data

• Come to a conclusion & report your findings

• Ask your question

Data can be...

• Numbers & Measurements

• Times

• Pictures & Observations

• All of the above

A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.Which is the best conclusion for this experiment?

• Acid has no effect on the health of this type of plant.
• B. High acidity is helpful to this type of plant.
• C. Low acidity is harmful to this type of plant.
• High acidity is harmful to this type of plant.

Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.  Which component is missing from Carmen’s experiment?

• a question
• a hypothesis
• a control group
• a description of the experiment

In order to be accepted, a scientific theory must be

•  widely tested and supported by extensive data
•  based on the results of a single experiment
•  controversial and cause debate
•  in line with all previous historical ideas