Lab: Thermal Energy Transfer Answers

Which are potential sources of error in the experiment? Check all that apply.estimating temperature to the nearest tenth of a degreeestimating the mass of the sample to the nearest tenth of a gramestimating the thickness of the foam cupsthe position of the cups of sand and water under the heat lampthe brand of light bulb used for the heat lampthe air temperature outside the lab

Which are ways to improve the design of this experiment? Check all that apply.Reduce the sample size so the experiment can be done faster.Increase the sample size from 6 cups to 12 cups of sand and water.Use more legible handwriting when recording data.Use more precise digital thermometers.Use more precise scales that measure to the hundredth of a gram.