"Measurement of Precipitation" Weather PPT Download

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"Measurement of Precipitation" Weather PPT Download

Part One: Making a Rain Gauge

What instrument is used to measure precipitation?

rain gauge

What is the principle of a rain gauge?

The appearance of the rain gauge is an ordinary cylindrical metal tube. The mouth of the tube is 70 cm above the ground. It is divided into upper and lower sections. The upper section is a funnel, and the lower section is a cylindrical tube. There is a water storage in the cylinder. bottle, and the funnel is inserted right into this water bottle.

The rain gauge is equipped with a measuring cup. You can measure the amount of precipitation by pouring rainwater or snow water into the measuring cup.

How to make a simple rain gauge?

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

2. Use a ruler to draw a scale on the paper, in millimeters. The length of the paper strip is slightly less than the height of the straight cup.

3. Take a piece of transparent tape that is longer than the graduated paper strip and lay it flat on the table with the glue side facing up. Stick the graduated 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 paper 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

How to measure precipitation?

1. Use a watering can to simulate precipitation and record the time.

2. Place the rain gauge on a horizontal table and read the scale.

3. Convert to 24 hours and check the rainfall level.

How to judge the level of rain?

Meteorologists classify rain levels based on the amount of precipitation.

Do you know how to judge light rain, moderate rain, or heavy rain?

Precipitation measurement PPT, Part 3 content: Classroom exercises

1. Fill in the blanks

1. There are many forms of precipitation, the common ones are ______, ______, _____, etc.

2.____________ is a device that measures precipitation

3. Meteorologists distinguish the levels of rain based on ____________________.

4. Less than 10 mm is ________, and 10 to 25 mm is ________.

2. Multiple choice questions

1. Rainfall level is calculated based on the precipitation amount within ( ) hour.

A.6 B.12 C.24

2. Among the following cups, which one can be used as a rain gauge ( ).

A. Straight cylindrical enamel cup B. Straight cylindrical ceramic cup

C. Straight transparent glass.

3. The scale strip of the homemade rain gauge is used for ( ).

A. Simulate precipitation B. Measure precipitation C Collect rainwater

4. The unit used to express the amount of rainfall is ( ).

A. Millimeters B. Meters C. Milliliters

3. Short answer questions

How to make a simple rain gauge?

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

2. Use a ruler to draw a scale on the paper, in millimeters. The length of the paper strip is slightly less than the height of the straight cup.

3. Take a piece of transparent tape that is longer than the graduated paper strip and lay it flat on the table with the glue side facing up. Stick the graduated 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 paper 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.

2. How to measure precipitation?

1. Use a watering can to simulate precipitation and record the time.

2. Place the rain gauge on a horizontal table and read the scale.

3. Convert to 24 hours and check the rainfall level.

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: 2024-09-30

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

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