Scientific Method - Group Project

Instructions: Give each group or pair one of the scenarios below. Ask the group to design and experiment to answer the experimental question. Students should identify a control group, dependent and independent variables and possible outcomes or what type of data would be gathered. Stress to students that they will not actually be performing these experiments. Have students either turn in their design on paper or do a mini-presentation to the class.

Does the wavelength of light (R.O.Y.G.B.I.V.) affect a plant’s growth?radish
Does tomato juice make hair grow faster?hair
Is acid rain causing a decline of frog populations?frog
Does the hormone estrogen increase the milk yield of dairy cows?cow
Does the size of a fish tank determine how large a fish will grow?fish
Does aspirin keep cut roses fresher longer?vase

Will crickets chirp more if the temperature is warmer?
Do wounds heal faster when they are covered by Band-Aids?bandaid
Which battery lasts longer, energizer or duracell?battery
Does hot water freeze faster than cold water? ice cube
Do tanning beds cause skin cancer?sun
What causes leaves to fall in autumn (light, temperature, or both)?leaf