Question

a: suzie q wants to know the effect of different colors of light on the growth of plants. she believes that plants can survive best in white light. she buys 5 ferns of the same species, which are all approximately the same age and height. she places one in white light, one in blue light, one in green light, one in red light and one in the closet. all of the ferns are planted in miracle - gro and are given 20 ml of water once a day for 2 weeks. after two weeks, suzie observes the plants and makes measurements. hypothesis: if plant growth is affected by color of light, then white light will produce the most plant growth. dependent variable: independent variable: what are some of the experimental constants: experimental group: control group:

Explanation:

The dependent variable is what is being measured and affected in the experiment. Here, it's plant growth. The independent variable is what is being changed or manipulated, which is the color of light. Experimental constants are factors kept the same to ensure a fair test, like plant species, age, height, type of soil (Miracle - Gro), and amount of water. The experimental groups are the plants exposed to different colored lights. The control group is the plant in the closet (no light exposure for comparison).

Answer:

Dependent Variable: Plant growth
Independent Variable: Color of light
Experimental Constants: Plant species, plant age, plant height, type of soil (Miracle - Gro), amount of water (20 mL per day)
Experimental Group: Ferns in white, blue, green, red light
Control Group: Fern in the closet