Ascientist used a laboratory model to test the effect of radiation, or the sun, in heating land and water on earth. to do this experiment, 200 ml of water a nd dry sand were placed in to 2 separate 250-ml beakers. each beaker was tin an experiment like this, why would you record data in a table like the one abovehen placed under the same lamp. temperature readings were taken of each substance every 2 minutes for 8 minutes.