Chemists frequently:

• Sit for long periods of time.

It is important for chemists to be able to:

• See details of objects that are less than a few feet away.
• Understand the speech of another person.
• Speak clearly so listeners can understand.
• See differences between colors, shades, and brightness.
• [ More ]
• Use fingers to grasp, move, or assemble very small objects.
• Hold the arm and hand in one position or hold the hand steady while moving the arm.

It is not as important, but still necessary, for chemists to be able to:

• Use one or two hands to grasp, move, or assemble objects.
• Make quick, precise adjustments to machine controls.
• See details of objects that are more than a few feet away.
• Move two or more limbs together (for example, two arms, two legs, or one leg and one arm) while remaining in place.
• [ More ]
• Use stomach and lower back muscles to support the body for long periods without getting tired.
• Hear sounds and recognize the difference between them.
• Focus on one source of sound and ignore others.
• Determine the distance between objects.