Experiment vs Investigation

When to use each in English, with meaning, register, and examples.

 ExperimentInvestigation
MeaningA test to find out something new.Looking into something to find out more about it.
CEFR levelA2B2
Part of speechnounnoun
Usage notesUsed in scientific contexts but can also refer to trying new ideas in everyday life. More formal in academic writing.Use 'investigation' in formal contexts, like police work or research. Avoid in casual conversations.

Frequently asked questions: Experiment vs Investigation

What's the difference between "Experiment" and "Investigation"?

"Experiment" means: A test to find out something new. "Investigation" means: Looking into something to find out more about it.

When should I use "Experiment" and "Investigation"?

They can all be used in everyday English.

Are "Experiment" and "Investigation" the same CEFR level?

"Experiment" is at A2, "Investigation" is at B2 on the CEFR scale.

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