During an investigation, a student measures out 15 grams of salt. then, he measures 15 milliliters of water and adds the salt to it. next, he measures a 1 centimeter wide by 4 centimeters long section of plant leaf. which list of tools is arranged in the order that the student used them?
(1)graduated cylinder, ruler, balance
(2)balance, ruler, graduated cylinder
(3)graduated cylinder, balance, ruler
(4)balance, graduated cylinder, ruler

Option D, balance, graduated cylinder, ruler

Explanation:

The student first measures the weight of the salt (15 grams) and thus he/she will prefer to use balance to measure the weight of salts exactly.  

Then the student measures the volume of water (15 millimeters) and thus he/she will prefer to use a graduated cylinder to measure the volume of water.

And lastly the student measures the length of a plant leaf and thus  

he/she will prefer to  use ruler to measure a scalar length quantity.  

Hence, option D is correct.

b.