Variables - Aeryn, Fran, Delaney

Experiment #1

100

Josephina thinks that when she gets toothpaste in her hair, it changes the color over time. She decides that she'll put toothpaste in one side of her hair for a week, keeping the other side clean. Then she'll see the changes in her hair. What is the IV?

The absence of toothpaste in her hair.

200

Josephina thinks that when she gets toothpaste in her hair, it changes the color over time. She decides that she'll put toothpaste in one side of her hair for a week, keeping the other side clean. Then she'll see the changes in her hair. What is the DV?

The color of the side of her hair with toothpaste in it.

300

Josephina thinks that when she gets toothpaste in her hair, it changes the color over time. She decides that she'll put toothpaste in one side of her hair for a week, keeping the other side clean. Then she'll see the changes in her hair. What is the CV?

The type of toothpaste, the location, the person, the length of hair, the amount of toothpaste, how long she takes a shower, how she puts on the toothpaste, the temperature, the weather, hair products, how much she uses them, physical activity.

Experiment #2

100

Claire thinks that using more hair spray will make your hair more tangled. What is the IV?

The amount of hair spray used.

200

Claire thinks that using more hair spray will make your hair more tangled. What is the DV?

The tanglyness of the hair.

300

Claire thinks that using more hair spray will make your hair more tangled. What is the CV?

Environment, same hair, other hair products, daily activities, what she does with her hair, how long she wears the hair spray, nightly activities.

400

Why is it important for the scientist to think of all of the controlled variables? A: For fun B: So that the results are accurate. C: More work

B: So the results are accurate.

Experiment #3

100

Francesca wondered if using a different brand of cat food would change her cat's behavior. What is the IV?

The brand of cat food

200

Francesca wondered if using a different brand of cat food would change her cat's behavior. What is the DV?

The change in the cat's behavior

300

Francesca wondered if using a different brand of cat food would change her cat's behavior. What is the CV?

cat, same daily activities, exposure, temperature, amount of food, feeding time

Experiment #4

100

Amara thinks that when she is wearing gloves, her hands will be more itchy. She will wear gloves all day, every day for a week, and then wear nothing on her hands all day, every day for a week. What is the IV?

Whether she wears gloves or not.

200

Amara thinks that when she is wearing gloves, her hands will be more itchy. She will wear gloves all day, every day for a week, and then wear nothing on her hands all day, every day for a week. What is the DV?

How itchy her hands are depending on if she wears or doesn't wear something on her hands.

300

Amara thinks that when she is wearing gloves, her hands will be more itchy. She will wear gloves all day, every day for a week, and then wear nothing on her hands all day, every day for a week. What is the CV?

Environment, pair of gloves, what she does with her hands, skin quality, what she touches with her hands, temperature.

Experiment #5

100

Mary believes that if she talks a lot, her energy level will go down. She will talk a lot for three days, and then talk her regular amount for three days. Then she will look at her research. What is the IV?

How much she talks.

200

Mary believes that if she talks a lot, her energy level will go down. She will talk a lot for three days, and then talk her regular amount for three days. Then she will look at her research. What is the DV?

Her energy level when she talks a lot compared to when she talks as much as she normally does.

300

Mary believes that if she talks a lot, her energy level will go down. She will talk a lot for three days, and then talk her regular amount for three days. Then she will look at her research. What is the CV?

The amount of characters she uses in her speech, the level of energy used for each word, the mouth movements for each word, the expression for each word, her daily activities, and her talking habits (stuttering, mumbling, etc).