Traditional Culture Encyclopedia - The 24 Solar Terms - Whether there is carbon dioxide in the bamboo joint or not, the design experiment proves that there is carbon dioxide in the gas in the bamboo joint.

Whether there is carbon dioxide in the bamboo joint or not, the design experiment proves that there is carbon dioxide in the gas in the bamboo joint.

Find some complete bamboo joints. Number it. (divided into several groups, with explanatory power)

Punch holes at the upper and lower ends.

The upper hole is wrapped by a balloon,

The lower end is immersed in water, and the gas is obtained by exhausting.

The corresponding balloon gases are introduced into the clarified limewater respectively.

Observe the phenomenon,

Analysis.

Conclusion.