Variable & Hypothesis Practice

Determine which statements have a quantitative and which have a qualitative independent variable (IV). Qualitative Data Teenagers have more acne if they eat chocolate How does the type of liquid affect the number of flowers a plant produces? What type of music played during studying leads to better scores on a test? The effect of type of paper on the distance a paper airplane flies. Quantitative Data How does the amount of water affect plant height? Warmer temperatures outside make it harder to concentrate during the school day. The effect of mass of paper on the distance a paper airplane flies. The effect of the amount of pressure on how high a bottle rocket flies. You decide to see if growing plants in blue light makes plants grow faster than growing them in white light. You get two plants that are the same size and type. You plant them in the same size pot, with the same soil. You water them the same amount of water on the same day. The two plants get the same amount of light. However, plant A gets 12 hours of white light and plant B gets 12 hours of blue light. After 5 weeks, you measure both plants; plant A is taller than plant B. Match the type of variable to the parts of the experiment. Plant A & Plant B Experimental Groups Light Color Independent Variable Hours of light Constant Plant height Dependent Variable What is the best hypothesis for the following experimental question:Does T.V. time seem to affect the reading scores of fourth graders? I think watching more T.V. will lower 4th grade reading scores because the students are not developing their reading comprehension skills. If a 4th grader watches more than three hours of T.V., then reading scores will be impacted If the amount of T.V. a 4th grader watches increases, then their reading scores will decrease What is the best hypothesis for the following experimental question:Does the color of light impact plant growth? If blue and white light are applied to plants, then the blue colored plant will grow taller If blue and white light are applied to plants, then the color plant will impact plant growth. I think blue light will impact plant height.