Everyone was on guard because of his suspicious behavior.

Everyone was on guard because of his suspicious behavior.

He committed another crime while on probation.

These test results are showing unexpected outcomes.

We analyzed the data of the experimental group.

He has a deep interest in empirical science.

The experimenter analyzed the data in detail.

Animal experiments are necessary for the advancement of science, but there are also ethical issues.

Nuclear tests pose a great threat to world peace.

This experimental device is used to create new substances.