Question

Imagine that you have four dyes to test, A, B, C, D. imagine that you are going to investigate which food dye diffuses most quickly.
a) which variable will you change?

b) Which variable will you measure? How will you do this?

Answer 1

Answer:

The independent variable is the one that is changed by the scientist

Answer 2

Answer:  b) The time taken, using a stopwatch