Scientific Investigation Essay Help

Part I: Scenarios Scenario 2 Lizzie loves to stargaze at night. She has noticed that the moon appears to change shape over the course of the month and she wants to investigate why this happens. She hypothesizes that the relationship of the sun Earth and moon creates shadows on the moon. She sets up an experiment with a light bulb to represent the sun a large beach ball to represent Earth and a smaller foam ball to represent the moon. She researches the position of the sun Earth and moon at different times of a month and makesScientific Investigation a model of the entire system. 1.Identify the parts of the scientific method in Lizzie?s experiment. Question: She has noticed that the moon appears to change shape over the course of the month and she wants to investigate why this happens. Research: She researches the position of the sun Earth and moon at different times of a month and makes a model of the entire system. Hypothesis: She hypothesizes that the relationship of the sun Earth and moon creates shadows on the moon. Experiment: She sets up an experiment with a light bulb to represent the sun a large beach ball to represent Earth and a smaller foam ball to represent the moon. 2.List at least three variables Lizzie should control during the experiment. For each variable identified give a specific suggestion for how Lizzie can control it. The position of the sun (light bulb) Also the distance of the Moon from the Earth sizes of the objects. Part II: Designing an Experiment Problem 2 A local farmer notices that the level of water in the pond behind his house has been going down. Temperatures have been very high in the area but there are also a lot of animals on his farm that may be drinking the water. What is causing the water to go down? Part II: The Process Experimental Design Parts of the Scientific Method I Chose Problem 2 Purpose What is making the water go down in the pond? Observation Temperature have been very high in the area but there are also a lot of animals on his farm that may be drinking the water. Research To find out the reason why the water is going down Hypothesis High temperatures caused the water to evaporate. Experiment Record temperatures and water levels each day of the week. We need to eliminate the effect of animals so we can build a fence. Independent variables Temperature Dependent variables Water level Data Monday: 84 degrees level at 25 feet Tuesday: 86 degrees level at 24 feet Wednesday: 86 degrees level at 24 feet Thursday: 88 degrees level at 23 feet Friday: 90 degrees level at 22 feet Saturday: 90 degrees level at 22 feet Sunday: 91 degrees level at 21.5 feet Analysis As the temperatures increased the water levels decreased. Conclusion As predicted increased temperatures caused water levels to go down therefore evaporation.”

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