Experimental teaching aid capable of intuitively observing liquid boiling point

A liquid, boiling point technology, applied in the field of experimental teaching aids, can solve problems such as unfavorable learning interest and intuitionistic teaching methods, and achieve the effect of cultivating learning interest and deepening impression

Inactive Publication Date: 2015-05-20
SHAANXI JOIN CREATE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of teaching method is not intuitive enough to impress students, and mechanical memory is not conducive to cultivating students' interest in learning.

Method used

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  • Experimental teaching aid capable of intuitively observing liquid boiling point

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0010] Such as figure 1 As shown, a kind of experimental teaching aid that can visually observe the boiling point of a liquid includes a transparent glass bottle 1 and a bottle stopper 4. A thermometer 7 and a barometer are arranged on the inner wall of the transparent glass bottle 1. The bottle stopper 4 communicates with the inside of the transparent glass bottle 1 , and the water delivery cylinder 6 passes through the bottle stopper 4 through the water delivery hose 5 and communicates with the inside of the transparent glass bottle 1 .

[0011] The using method of the present invention is as follows:

[0012] Open the bottle stopper 4, pour water into the transparent glass bottle 1, cover the bottle stopper 4, heat the transparent glass bottle 1 on the alcohol lamp, and at the same time, extract the air in the bottle under the reference of t...

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Abstract

The invention discloses an experimental teaching aid capable of intuitively observing a liquid boiling point, which comprises a transparent glass bottle and a bottle plug. The inner wall of the transparent glass bottle is provided with a thermometer; an air pump passes through the bottle plug via an air pumping hose to be connected with the inner part of the transparent glass bottle; and a water feeding cylinder passes through the bottle plug via a water feeding hose to be connected with the inner part of the transparent glass bottle. A physical experiment on the relationship between the liquid boiling point and air pressure can be realized, the whole process is demonstrated to students, learning interests of students can be cultivated, the impression on the physical phenomenon is deepened for the students, the instrument is simple and easy to operate, the temperature and corresponding air pressure of the liquid can be adjusted according to needs, multiple groups of experiments can be carried out and mutually compared.

Description

technical field [0001] The invention belongs to the field of teaching aids, in particular to an experimental teaching aid which can visually observe the boiling point of a liquid. Background technique [0002] The verification of the relationship between liquid boiling point and air pressure is an important lesson in physics teaching. In teaching, most teachers think that the principle is simple so there is no need to verify it. They just require students to memorize the relationship between the two. Such a teaching method is not intuitive enough to impress students, and mechanical memory is not conducive to cultivating students' interest in learning. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an experimental teaching aid for visually observing the boiling point of a liquid, which is used for visually displaying the physical experiment. [0004] In order to ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/16
CPCG09B23/16
Inventor 不公告发明人
Owner SHAANXI JOIN CREATE SCI & TECH
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