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

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

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

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

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

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

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

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