How to use a three-level scientific thermometer?

The use of the three-level scientific thermometer is as follows:

First, the preparation stage.

Before starting the measurement, make sure that the thermometer is dry, clean and placed in a flat and barrier-free position. Avoid being placed in strong airflow such as fans or air conditioners to ensure the accuracy of measurement results.

Second, the observation time

Choose a time period with stable weather and observe at different times of the day, such as early morning, morning, afternoon and evening. In this way, we can fully understand the change of temperature.

Third, reading methods

When observing, keep the line of sight on the same level as the thermometer, so as to accurately read the value on the thermometer. Pay special attention to distinguish the position of mercury column to ensure accurate reading.

Fourth, data recording.

After each observation, record the time and temperature values in the notebook. The observed data of several days can be plotted as a temperature change curve, which is helpful to understand the temperature change trend more intuitively.

Verb (abbreviation of verb) matters needing attention

In order to ensure the measurement accuracy, the thermometer should be avoided in direct sunlight or high temperature environment. At the same time, the accuracy of the thermometer should be checked regularly, and the errors should be calibrated in time. In addition, keep the mercury glass tube clean to avoid dirt from affecting the reading.

Mystery and diversity of temperature and climate

1, the mystery of temperature change

The change of temperature in a day is not random, but follows a certain law. As the sun rises and sets, the temperature changes. This law is related to the rotation of the earth and the absorption of solar radiation by the atmosphere. Understanding this law will help us better understand climate change.

2. Various representations of temperature

In science and daily life, we often encounter different kinds of temperature expressions, such as degrees Celsius and degrees Fahrenheit. It is very necessary to know the conversion of different temperature measurement units, especially in international communication or scientific comparison.