Experiment 2: Floating Needle " Obtain any materials you plan to use for this lab. Ensure that your lab report is nearby. . Complete the Purpose: Floating Needle section of your lab report. Explain your reason for conducting this experiment. " Construct a hypothesis predicting the outcome of placing a needle on the surface of water and then adding liquid soap. Be sure to support your statement. Record your hypothesis in the Hypothesis: Floating Needle section of your lab report. " Complete the Materials: Floating Needle section of your lab report. List all of the materials you will use. " After completing these steps, you may begin the experiment. . Pour 2 cups of tap water into a clean bowl. " Use tweezers to place a sewing needle or paper clip carefully on the surface of the water. Avoid breaking the water's surface. If you are patient, you should be able to rest the needle on top of the water. " Next, carefully place one drop of liquid soap on the surface of the water and observe what happens. " In the Data Observations: Floating Needle section of your lab report, describe your observations. What happens when you add the soap? " Analyze your observations and answer the related questions in the Conclusions section of your lab report. Note that you will complete all experimental conclusions in this section. . Clean up your area. Carefully remove the needle or paper clip from the water and pour the water down the drain. Wash and dry the bowl and the needle or paper clip