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
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[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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