Difference between Moderately and Somewhat

Moderately

Part of speech: adverb

Definition: In a moderate manner. To a moderate extent or degree.

Example sentence: I work out sort of moderately.

Somewhat

Part of speech: adverb

Definition: To a limited extent or degree.

Part of speech: pronoun

Definition: something

Example sentence: Often times when you face such an overwhelming challenge as global climate change, it can be somewhat daunting - it's kind of like trying to lose weight, which I know something about.