David is a chemist working from home. Emily calls with questions about chemical safety. They discuss how to use chemicals safely.
Vocabulary:
Chemical: A substance used in or made by a chemical process.
Spill: When a liquid flows out of its container by accident.
Goggles: Protective glasses worn to keep eyes safe.
Mask: A covering for the face to protect from harmful substances.
Safe: Free from harm or danger.
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