Oscar placed a beaker of water on a hot plate and recorded the temperature of the water for four minutes. he recorded his observations in the data table below.
time (s) temperature (°c) observations
0 24 no activity
30 35 no activity
60 57 some steam rising
90 81 more steam rising;
tiny bubbles forming
120 98 more steam rising;
more bubbles
150 100 boiling
180 100 boiling
210 100 boiling
240 100 boiling
based on oscar's observations, what is the most appropriate scientific question to ask?