Question

a factor in an experiment that a scientist changes on purpose is called the * 1 point
constant
independent variable
dependent variable
tester

which tool would you use to measure the volume of a liquid? * 1 point
thermometer
balance
graduated cylinder
meter stick

Explanation:

The first question relates to experimental variables; the independent variable is the one intentionally manipulated. The second question concerns lab tools for measuring liquid volume, where a graduated cylinder is used.

Answer:

B. Independent Variable
C. Graduated cylinder