"Measurement of Precipitation" Weather PPT

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"Measurement of Precipitation" Weather PPT

Part One: Making a Rain Gauge

How can we know the amount of precipitation?

A rain gauge is a device that measures the amount of precipitation.

Try making a simple rain gauge.

1. Find a straight transparent cup with a height of more than 15 cm;

2. In millimeters, use a scale to draw a mark on the paper strip. The length of the paper strip is slightly smaller than the height of the straight cup;

3. Take a piece of transparent tape that is longer than the scale paper strip and lay it flat on the table with the glue side facing up. Stick the scaled side of the paper strip down in the middle of the tape;

4. One student holds the cup, and the other student sticks the transparent tape on the scale strip vertically to the outside of the cup, making sure that the bottom of the scale is exactly aligned with the bottom of the inside of the cup;

5. Paste the group’s name on the back of the cup by pasting a graduated paper strip.

Measurement of precipitation PPT, Part 2: Measuring precipitation

Use a watering can to simulate rainfall and communicate how we collect and measure precipitation.

Place the rain gauge in an open area before it rains. In order to prevent rainwater that falls on the ground from splashing in, the rain gauge should be placed slightly higher.

After the rainfall ends, place the rain gauge on a level table and read the scale on the rain gauge while your line of sight is parallel to the water surface in the gauge.

In rainy weather, use a homemade rain gauge to measure the amount of precipitation within 24 hours, and compare it with the grade table to determine the level of rain.

Choose an open location with no shelter above or nearby, and secure the rain gauge to prevent it from being blown over by the wind.

Record the precipitation every 24 hours, make a good record, and compare it with the grade table to determine whether the rain grade is no rainfall, light rain, moderate rain, or heavy rain.

After recording, drain the water from the rain gauge.

Keywords: Free download of Chinese PPT courseware for the first volume of the fourth grade of the textbook version, download of precipitation measurement PPT, download of weather PPT, .PPT format;

For more information about the "Measurement of Weather and Precipitation" PPT courseware, please click the "Measurement of Weather and Precipitation ppt" tag.

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Update Time: 2024-10-12

This template belongs to science courseware Fourth Grade Science Volume 1, Textbook Edition industry PPT template

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