Tsinghua 81204 handheld screen is an experimental equipment specially designed for primary school science education. It is equipped with 3 kinds of screen, which can efficiently complete the task of grading samples. Its portable design is easy for students to operate, is the ideal tool for science classroom. This article will detail the characteristics of this handheld screen and its application in teaching to help teachers and students better understand and use this scientific instrument.

Product Features of Tsinghua 81204 Handheld Sieve

Three sizes of screens to meet different experimental needs

Tsinghua 81204 handheld screen is equipped with three different specifications of the screen, respectively, 2mm, 1mm and 0.5mm. These three sizes of screens can meet the separation needs of different types of samples, whether it is soil particles, rock fragments or plant seeds, can easily achieve accurate classification.

Portable design, easy for students to operate

The handheld screen adopts a lightweight and portable design, suitable for primary school students. The handle part adopts ergonomic design, comfortable to hold, even children can easily operate. In addition, the overall structure is compact, occupies a small space, and is convenient to carry and store.

Durable material to ensure long-term use

Tsinghua 81204 handheld screen is made of high-quality stainless steel, which has strong corrosion resistance and wear resistance. This means that even in the case of frequent use, the screen will not be easily damaged, ensuring a long service life of the product.

Accurate separation to improve experimental efficiency

Each layer of the screen is precision-machined and the aperture is uniform, which can accurately divide the sample into different particle sizes. This precise separation ability greatly improves the accuracy and efficiency of the experiment, enabling students to obtain reliable data in a short time.

Application Scenarios of Handheld Sieve in Tsinghua 81204

Ideal tool for the science classroom

In elementary school science classes, Tsinghua 81204 handheld sieves can help students visually observe and learn the different properties of matter. For example, in a soil particle analysis experiment, students can use a hand-held sieve to divide the soil into particles of different sizes to gain a deeper understanding of the composition and structure of the soil.

Multifunctional assistant in the lab

In addition to classroom teaching, Tsinghua 81204 handheld screen is also an important tool in the school laboratory. It can be used for various physical, chemical and biological experiments, such as rock composition research, plant seed screening, etc., to help researchers quickly and accurately complete the sample pretreatment work.

Ideal for home science experiments

For children who like to do scientific experiments at home, Tsinghua 81204 handheld sieve is also a good choice. Its portability and ease of use allow children to complete some simple experiments independently at home, and cultivate their hands-on ability and scientific thinking.

Tsinghua 81204 handheld sieve operation guide

Detailed assembly steps

The assembly of Tsinghua 81204 hand-held screen is very simple. First, stack the three layers of screens in descending order; then, fix them on the handle; finally, tighten the screws to complete the assembly. The entire process takes only a few minutes and is ideal for first-time users.

Use tips and precautions

In order to ensure the smooth progress of the experiment, here are some suggestions and precautions:

• Before use, check the screen for damage or blockage.
• Select the appropriate screen combination according to the experimental requirements.
• When vibrating the sieve, the strength should be moderate to avoid sample splashing caused by excessive force.
• After each experiment, the screen should be cleaned in time to keep it clean and tidy.

Cleaning and maintenance methods

Regular cleaning and maintenance can extend the service life of the hand-held screen. The specific method is as follows:

• Use a soft brush or cloth to remove residue from the screen.
• If necessary, wash the screen with warm water, but be careful not to soak it for too long.
• After cleaning, place in a ventilated place to dry naturally.
• Avoid contact with strong acid and alkali solutions to avoid corrosion of the screen.

Teaching Application of Handheld Sieve in Tsinghua 81204

Soil particle analysis experiment

By using Tsinghua 81204 hand-held sieves, students can divide soil samples into different particle sizes and observe and record the proportion of each particle size. This helps them understand the physical properties of soil and further explore the impact of soil on plant growth.

Rock composition research experiment