Page 1: Lab Safety, Equipment, and Data Types (Vocabulary)

Phenomenon

• Definition: A fact or event observed in nature or experiments; object of study.

Qualitative data

• Descriptive data without numbers (color, texture, smell).

Quantitative data

• Numerical data (mass, volume, temperature).

Most important lab safety rules

• Wear safety goggles at all times in the lab.
• No eating or drinking in the lab.
• Tie back hair and avoid loose clothing/jewelry.
• Follow instructor's directions; work only as directed.
• Know location and proper use of safety equipment (eye wash, safety shower, fire extinguisher).
• Label and dispose of chemicals properly; never mix unknowns.
• Clean up spills immediately; keep workspace tidy.
• Report accidents or injuries promptly.

Common lab equipment and uses

• Safety Goggles: protect eyes from chemical splashes and debris.
• Beaker: holds liquids, rough volume measurement, mixing.
• Test Tube: holds small samples, carries out reactions, can be heated.