In class one day, a student heard the teacher say that "like dissolves like." To test this theory, she performed the following experiment:
Four 250 mL beakers containing 100 mL of water each were placed side by side on a table.
Then, she put 50 g sodium chloride, 50 g vegetable oil, 50 g sugar, and 50 g glycerin into the first, second, third, and fourth beakers, respectively.
Finally, she stirred each beaker for exactly 2 minutes using a different stirring rod for each beaker.
Which of the following factors was the variable in her experiment?In class one day, a student heard the teacher say that "like dissolves like." To test this theory, she performed the following experiment:
Four 250 mL beakers containing 100 mL of water each were placed side by side on a table.
Then, she put 50 g sodium chloride, 50 g vegetable oil, 50 g sugar, and 50 g glycerin into the first, second, third, and fourth beakers, respectively.
Finally, she stirred each beaker for exactly 2 minutes using a different stirring rod for each beaker.
Which of the following factors was the variable in her experiment?
Four 250 mL beakers containing 100 mL of water each were placed side by side on a table.
Then, she put 50 g sodium chloride, 50 g vegetable oil, 50 g sugar, and 50 g glycerin into the first, second, third, and fourth beakers, respectively.
Finally, she stirred each beaker for exactly 2 minutes using a different stirring rod for each beaker.
Which of the following factors was the variable in her experiment?In class one day, a student heard the teacher say that "like dissolves like." To test this theory, she performed the following experiment:
Four 250 mL beakers containing 100 mL of water each were placed side by side on a table.
Then, she put 50 g sodium chloride, 50 g vegetable oil, 50 g sugar, and 50 g glycerin into the first, second, third, and fourth beakers, respectively.
Finally, she stirred each beaker for exactly 2 minutes using a different stirring rod for each beaker.
Which of the following factors was the variable in her experiment?