Joy

History

12 January, 11:06

Mr. Johnson challenged his students to see which group could dissolve the salt fastest in a 100 ml of water the students could change any variables except the volume water used. Group 1 change the water temperature they used top water at 22 Celsius and then other temperatures: 32, 42, and 52 Celsius they did not stir the mixture and they kept the volume of the water constant, jus just like Mr. Johnson directed. The salt dissolved the fastest in the warmest water. In their conclusions, Group 1 wanted to include a line graph of their data

What label (s) should they place on the X axis

A) rate of dissolving

B) volume of water used

C) time to dissolve (sec)

D) temperatures of water (Celsius)