"How Much Will It Rain?" What will the weather be like tomorrow PPT courseware 3

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"How Much Will It Rain?" What will the weather be like tomorrow PPT courseware 3

Pre-class testing:

1. Convert according to the reading or writing method of temperature.

Writing at 37 degrees Celsius Writing at minus 5 degrees Celsius

4°C is read as 12°C is read as

2. The highest temperature of the day is in ( ).

3. Judgment

The measuring instruments placed in the shutter include psychrometer, barometer and thermometer. ( )

The height of shutters is different across the country, with higher heights in coastal areas and lower heights in inland areas. ( )

Learn to make a simple rain gauge

1. Cut along the shoulder of the plastic bottle and remove the bottom part.

2. Attach a ruler to the side of the bottle and a layer of transparent tape.

3. Flip the cut top of the bottle upside down on the bottle.

Friendly reminder: Pay attention to safety when making and don't hurt your hands.

When measuring rainfall with a rain gauge, please note:

Before measuring rainfall, add water to the "0" scale.

When measuring, place the rain gauge in an open area and find a way to secure it.

When reading, place the rain gauge on a flat place, keep your sight level with the scale, and start reading from the "0" scale.

When measuring rainfall, the measurement time should be recorded in order to compare the magnitude of the rainfall.

think:

Does the diameter of the rain gauge affect the measurement?

Is it okay to use rain gauges of different sizes to measure precipitation?

Measuring precipitation has nothing to do with the thickness and size of the rain gauge used. What matters is the height of the rain in the gauge.

You can pour some water into the unscaled part of the simple rain gauge first.

What patterns did you find?

It is found that the measured time is the same, that is, 24 consecutive hours; the measured rainfall unit is also the same, that is, millimeters.

What is the relationship between rain and human production and life?

Answer: Advantages: providing necessary moisture to plants, alleviating drought, purifying the air, and maintaining air humidity.

Disadvantages: inconvenient transportation, flooding, mudslides and other natural disasters, endangering human life and economic losses.

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"How Much Will It Rain?" What will the weather be like tomorrow PPT courseware 4:

"How Much Will It Rain?" What will the weather be like tomorrow? PPT Courseware 4 What is rainfall? The depth of rainwater that falls from the sky on the ground and accumulates on the ground without evaporation, infiltration, or loss is called rainfall. What is the unit of rainfall? Rainfall...

"How Much Will It Rain?" What will the weather be like tomorrow PPT courseware 2:

"How Much Will It Rain?" What will the weather be like tomorrow PPT Courseware 2 When it rains, how do you know how hard it will rain? Rain has a great impact on our lives. You can only roughly know how heavy the rain is by seeing and hearing it with your ears. If you want to know exactly how heavy the rain is, think about it...

"How Much Will It Rain?" What will the weather be like tomorrow PPT courseware:

"How Much Will It Rain?" What will the weather be like tomorrow? PPT courseware. Do it. Steps to make a simple rain gauge 1. Find a straight transparent cup (or drink bottle) with a height of more than 15 cm. 2. Use a ruler to draw a scale on the paper, in millimeters. 3. Stick the paper strip vertically to the cup...

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Update Time: 2024-09-16

This template belongs to science courseware E-education edition fourth grade science volume 1 industry PPT template

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