What is a science word that starts with the letter f?

Answer 1

Here are a couple examples of vocabulary words starting with F:

• Fault, floodplain, focus, folding, foliated, fossil, fossil fuel, fracture, and front.
• Foliated describes the texture of metamorphic rock in which the mineral grains are arranged in planes or bands.

Answer 2

Fluorine, which is a highly reactive halogen (Period Table of Elements).