First, ask questions.

Is there a relationship between the speed of water flow and the degree of water meter? Does the water meter turn fast when the tap is on, or is it the same when it is on and off? Let's explore.

Second, the experimental equipment

1.5L bottle, stopwatch, camera, water meter.

Second, after the experiment.

1, check the original degree of the water meter, record it with the camera and record it on the form.

2. Take a bottle of 1.5L, fill it at three speeds: slow, medium and fast, and time it with a stopwatch.

3. Go to the water meter to see the degree, and subtract the new data from the old data, which is the degree displayed by the water meter.

Third, the experimental data:

First reading: 132.8067

Number of experiments: the first time

Water velocity: slow 1

Time taken (seconds): 43 "

Degree of water meter (ton): 132.8082

Shown water consumption (ton): 0.00 15.

Actual water consumption (ton): 0.00 15.

Number of experiments: the second time

Water flow speed: slow 2

Time (seconds): 105 "

Degree of water meter (ton): 132.8095

Shown water consumption (ton): 0.00 13

Actual water consumption (ton): 0.00 15.