A) To avoid getting your eyelashes dirty.
B) To protect your eyes from potential chemical splashes or spills.
C) Because it is a fashion trend among scientists.
D) To look more professional in the lab.

A) To demonstrate your independence from guidelines.
B) To waste time in the lab.
C) To ensure safety, accuracy, and reproducibility of the results.
D) To make the experiment more challenging.

A) A group in which the variable being tested is not applied, used as a baseline for comparison.
B) A group that cheats in the experiment.
C) A group that controls the experiment.
D) A group that does the experiment first.

A) To make the experiment last longer.
B) To confuse the experimental process.
C) To provide a testable prediction about the outcome of the experiment.
D) To provide a summary of the experiment after completion.

A) Thermometer
B) Stopwatch
C) Ruler
D) Balance

A) To confuse the validity of the initial results.
B) To ensure that the results are consistent and not due to chance or errors.
C) To waste time and resources in the lab.
D) To discourage further experimentation.

A) Constant variables.
B) Independent variables.
C) Dependent variables.
D) Control variables.

A) To show off your math skills.
B) To confuse the data analysis.
C) To impress your classmates.
D) To ensure the reliability and validity of the results.