1-03 Scientific Method

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1.03 Scientific Method Part 1: (Scenario 2) Katherine wants to investigate if the time of day a plant is watered affects the growth of the plant. She hypothesizes that a plant watered in the morning will grow faster than a plant watered at other times of the day. 1. Identify the specific independent and dependent variables that will be involved in an experiment to test this hypothesis. The independent variable in an experiment to test Katherine's hypothesis is when the water is given to the plant. The dependent variables that will be involved are the plant's growth in each situation. 2. List at least five variables that should be controlled during the experiment. For each variable identified, give a specific suggestion for how it can be controlled during the experiment. i. How much water is used- using the same amount for each plant can provide more accurate results ii. The type of plant used- using the same type of plant can also provide more accurate results iii. The type of soil- using the same type of soil will allow the plants to have no other reason to grow differently iv. How much light reaches the plant- keeping the plants in relatively the same area so that they can get approximately the same amount of light allows for accuracy as well v. Type of light- putting the plants under the same type of light, whether it be sunlight or artificial, will promote accuracy Part 2: Purpose: I want to investigate the way to keep fresh cut flowers last the longest. Research: I would research other ways that people have found out about flowers. You could find a florist's website with how to take care of fresh flowers and compare in your experiment to how a blogger says that the flowers stay fresh the longest. Hypothesis: “I believe that the florist's suggestion of using their floral conditioner will cause the flowers to last longer

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