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Experiment 1
Experiment 2
Experiment 3/4
Experiment 5/6
Experiment 7/8
100
Two kids read a book. One kid, who is 10 reads the whole book in three days. The second kid, who is 8 reads the book in six days. What is the independent variable?
The independent variable are the ages of the two children.
100
Sally painted her nails on Saturday while Paige painted her nails on Sunday. Sally painted her nails pink and Paige painted her nails blue. Sally's nail polish wore off on Thursday while Paige's wore off in a week. What is the independent variable?
The independent variable is how many days.
100
Sara ate lunch at 11:00. Molly ate lunch at 12:30. Sara started to get hungry around 3:00. Molly got hungry at around 4:45. What is the independent variable?
The independent variable is the times the girls get hungry.
100
1 computer takes 50 minutes to get a full charge. The next day the power is down so the computer takes 70 minutes to get a full charge. What is the IV?
How much power there is.
100
One tube of sunscreen stays good for 3 hours. Another tube of sunscreen stays on for 6 hours. What is the IV?
The sunscreen that the person used.
200
Two kids read a book. One kid, who is 10 reads the whole book in three days. The second kid, who is 8 reads the book in six days. What is the dependent variable?
The dependent variable is how fast the two children read.
200
Sally painted her nails on Saturday while Paige painted her nails on Sunday. Sally painted her nails pink and Paige painted her nails blue. Sally's nail polish wore off on Thursday while Paige's wore off in a week. What is the dependent variable?
The dependent variable is how long the nail polish stayed on.
200
Sara ate lunch at 11:00. Molly ate lunch at 12:30. Sara started to get hungry around 3:00. Molly got hungry at around 4:45. What is the independent variable?
The dependent variable is when they eat and when they get hungry.
200
1 computer takes 50 minutes to get a full charge. The next day the power is down so the computer takes 70 minutes to get a full charge. What is the DV?
The minutes to charge the computer.
200
One tube of sunscreen stays good for 3 hours. Another tube of sunscreen stays on for 6 hours. What is the DV?
How long the sunscreen stays good for.
300
Two kids read a book. One kid, who is 10 reads the whole book in three days. The second kid, who is 8 reads the book in six days. What is the controlled variable?
The controlled variables are the book, environment, weather, state of mind, time, place, eyesight, and comfort.
300
Sally painted her nails on Saturday while Paige painted her nails on Sunday. Sally painted her nails pink and Paige painted her nails blue. Sally's nail polish wore off on Thursday while Paige's wore off in a week. What is the controlled variable?
The controlled variables are the nail polish, place, environment, time of day, state of mind, how much they washed their hands, nail sizes, and age.
300
Sara ate lunch at 11:00. Molly ate lunch at 12:30. Sara started to get hungry around 3:00. Molly got hungry at around 4:45. What is the controlled variable?
The controlled variables are lunch, place, state of mind, temperature, what they just were doing, environment, with/without other people, wind, weather and time.
300
1 computer takes 50 minutes to get a full charge. The next day the power is down so the computer takes 70 minutes to get a full charge. What is the CV
Time of day, the computer, the place, the plug, the weather, the temperature, the room, the outlet and the person plugging it in.
300
One tube of sunscreen stays good for 3 hours. Another tube of sunscreen stays on for 6 hours. What is the CV.
The place, temperature, the weather, time of day, sunlight, amount of sunscreen, state of mind, and the time in the sun.
400
What is the independent variable?
The independent variable is what is being changed.
400
What is the controlled variable?
The controlled variable is what stays the same.
400
Tim, an artist painted five paintings in ten days. The next month Tim painted the same paintings in five days. What is the IV and DV?
The IV is the number of days and the DV is how long it takes for Tim to paint the five paintings.
400
Kai was given a baseball bat and a baseball. The first month he played, he was the fifth best batter on his team. The second month, he was the third best batter on his team. What is the IV and DV?
The IV is his batting skills on the team, and the DV is how much he moves up.
400
In school Katie finishes 50% of her homework in the first month. The next month, Katie finishes 75% of her homework from class. What is the IV and DV?
The IV is how much homework she gets done in class and the DV is the percentage of more homework she gets finished.
500
What is the DV?
What is being measured.
500
What variable does "time" fall into?
The control variable (CV)
500
Tim, an artist painted five paintings in ten days. The next month Tim painted the same paintings in five days. What is the CV?
The CV's are the painting, place, feeling, time, weather, age, year, brushes, paint, easel, and chair that he is sitting in.
500
Kai was given a baseball bat and a baseball. The first month he played, he was the fifth best batter on his team. The second month, he was the third best batter on his team. What is the CV?
The CV's are bat, baseball, weather, feeling, wind, age, team, stadium, time, skill, and place.
500
In school Katie finishes 50% of her homework in the first month. The next month, Katie finishes 75% of her homework from class. What is the CV?
The CV's are the pencil, age, place, sleep, time, food, knowledge, state of mind, weather, homework, and the help she gets.