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Qingdao Edition Fourth Grade Science Volume 1	pptx	6 MB

"Wood" PPT download

Author: ︶￣Ｓs°╮

Upload Time: 2024-10-31

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Description

"Wood" PPT download

Part One: Warm Tips

According to the content of your own research, determine appropriate research methods and formulate reasonable experimental plans.

Choose experimental materials and tools.

Conduct experimental research according to the plan and keep experimental records.

be safe.

"Wood" PPT download, part 2: Characteristics of wood

Observe with a magnifying glass - wood has texture

Burn with alcohol lamp - wood can burn

Carve with a knife - wood can be soft or hard

Put in water - most wood will float

Connecting to a circuit - Dry wood does not conduct electricity, but wet wood conducts electricity

"Wood" PPT download, the third part: Application of wood

Wood can be used to make furniture, build houses, build bridges, be used as sleepers for railway tracks, make decorative wood, make chopsticks, tables, chairs, etc.

Cherish wood

1. Take good care of flowers, plants and trees; do not carve or write graffiti on trees.

2. Stop damage to trees when you see them.

3. Save paper in your daily study, because wood is the raw material for making paper.

4. Use something to replace wood. For example, wooden tables can be replaced with glass ones, thus saving wood...

Keywords: Qingdao edition fourth grade science PPT courseware free download, wood PPT download, .PPT format;

For more information about the "Wood" PPT courseware, please click on the "Wood ppt" tab.

"Wood" PPT courseware:

"Wood" PPT courseware Part 1 content: Learning objectives: 1. Experience cooperation and communication in observation and experimental activities to explore the characteristics of wood. 2. Know that wood is a natural material and understand its properties and uses. Self-study guidance: Observe the pictures and read the text in textbook 40..

"Wood" PPT:

"Wood" PPT Part One: Exploring Questions Questions to be explored: 1. The texture of wood 2. Whether it can burn 3. The softness and hardness of wood 4. The sinking and floating in water 5. Can it conduct electricity 6. The heat conductivity of wood. .. ... ... "Wood" PPT, the second part of the content...

File Info

Update Time: 2024-10-31

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

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Wood ppt

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"Wood" PPT download