Similarities:
1. Temperature Measurement: Both laboratory and clinical thermometers are instruments used to measure temperature accurately.

2. Display Options: Both types may use mercury or digital displays to show temperature readings.

Differences:
1. Purpose:
– Laboratory Thermometer: Employed in scientific labs to measure a wide temperature range, including extreme hot or cold conditions.
– Clinical Thermometer: Specifically designed to measure human body temperature and commonly used in medical settings.

2. Temperature Range:
– Laboratory Thermometer: Covers a broader temperature range, suitable for various experimental conditions.
– Clinical Thermometer: Typically measures within the human body temperature range.

3. Design:
– Laboratory Thermometer: Longer, with a narrow tube and markings for precise readings.
– Clinical Thermometer: Shorter, with a wider tube, designed for oral, axillary, or rectal use in humans.

4. Accuracy:
– Laboratory Thermometer: Generally more precise, intended for accuracy in scientific experiments.
– Clinical Thermometer: Accurate for measuring human body temperature variations.

5. Handling:
– Laboratory Thermometer: Requires careful handling and is used in controlled lab conditions.
– Clinical Thermometer: Designed for general use by individuals or medical professionals, focusing on ease of handling and sterilization.

In summary, while both measure temperature, laboratory thermometers suit scientific experiments with a wider temperature range, while clinical thermometers are specialized for measuring human body temperature in medical settings.