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.

Whenever conducting an experiment, especially one where a change is monitored over time, it is essential to record the data to ensure proper monitoring of the experiment. 
A table may be constructed, with column headings such as "temperature" and "time". Data collected in this manner is also easier to analyze, as well as more convenient to plot on a graph. 

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.