"It's Raining" What will the weather be like tomorrow PPT courseware 2

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"It's Raining" What will the weather be like tomorrow PPT courseware 2

Take a guess:

The silver threads are long and thin,

Going up to the sky and coming down to the earth,

You cannot fly a kite if the string is too long.

Threads are too thin to weave cloth.

Use your brain

Rain is a common weather phenomenon. Please think about it, what is the scene like before and during the rain?

test you

How to get enough water vapor in a short time?

Heating with alcohol lamp

How to make this water vapor cool?

glass piece

Precautions:

1. Handle experimental instruments with care to prevent damage and burns.

2 Pay special attention to safety when using the alcohol lamp. The match used to light the alcohol lamp must be extinguished and put into the waste basin. After the experiment, use the alcohol lamp cap to extinguish the alcohol lamp.

3. When using a test tube clamp to clamp a glass piece, hold the long handle with your four long fingers and the short handle with your thumb.

4 During the experiment, observe carefully and the recorder will record the experimental phenomena and conclusions.

5 After the experiment is completed, the team leader will return the equipment to its original position.

My conclusion:

Water is heated to form water vapor,

Water vapor condenses into small water droplets when exposed to cold.

Small water droplets gathered and fell.

The formation of rain in nature:

When water is heated, it forms water vapor. When the water vapor is cooled, it condenses into small water droplets. The small water droplets gather and fall to form rain.

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For more information about the PPT courseware "What will the weather be like tomorrow, will it rain?", please click the tag "What will the weather be like tomorrow, will it rain?" ppt.

"It's Raining" What will the weather be like tomorrow PPT courseware:

"It's Raining" PPT courseware about what the weather will be like tomorrow. Use your brain. Rain is a common weather phenomenon. Please think about it, what is the scene like before and during the rain? Guess: How is rain formed? Water turns into water vapor due to evaporation and runs into the air.

"It's Raining" PPT Courseware 3:

"It's Raining" PPT Courseware 3 Word Recognition Ant Moving Sliding Shining Flowing Stone Steps Asphalt Road Drunk Sandals Crooked Collection Learning Objectives Read the text and understand the scene before and during the rain. Feel the beauty of the mirror in the rain and experience the happiness of the children in the rain...

"It's Raining" PPT Courseware 2:

"It's Raining" PPT Courseware 2 Reading Beautiful Sentences The ants whisper: It's going to rain! Move quickly! The silver threads were blown crookedly by the wind, as if they were drunk. The small raindrops gathered together and turned into a stream, flowing on the ground. The asphalt roads have become slippery...

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Update Time: 2024-09-26

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

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