"Protect Our River of Life" PPT

Description

Hunan Education Edition Sixth Grade Volume 2 Science, Protect Our River of Life PPT

Part One: Group Discussion

water purification experiment

group discussion:

1. How to use experiments to simulate sewage treatment?

2. Design an experimental plan based on existing materials.

3. Understand the purpose of the experimental materials prepared.

4. Fill in the form.

1. Based on the existing materials, we can only carry out simple sewage treatment. Please choose the appropriate treatment method: Please put a √ in ( ).

Physical methods: precipitation and filtration ( )

Biological methods: bacterial decomposition ( )

Chemical method: Disinfection ( )

2. The physical method has two parts ( ) and ( ). In the experiment, you should first ( ) and then ( ).

Protecting our river of life PPT, part 2: group experiment requirements

Group experiment requirements:

1. Division of labor and cooperation.

2. Allocate time reasonably.

3. Compare and observe the water before and after purification.

4. Summarize and analyze the reasons for the success or failure of the experiment.

5. Fill in the observation record form.

Protecting our river of life PPT, part three: Experiment summary

Experiment summary:

Analyze the reasons for gains and losses in the experiment.

Sedimentation and filtration can generally only separate visible particulate impurities in sewage. There are many microorganisms and harmful chemicals that cannot be seen with the naked eye, and they need to be removed through other measures to make the water cleaner.

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For more information about the "Protect Our River of Life" PPT courseware, please click the "Protect Our River of Life" PPT tab.

"Protecting Our River of Life" PPT courseware:

Hunan Education Edition Sixth Grade Volume 2 Science, Protecting Our River of Life PPT Courseware, Part One: Facility Grilles to Protect the Environment: Its main function is to intercept large pieces of dirt in sewage, otherwise these large pieces of dirt Will block the pump or process pipeline of subsequent units..

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Update Time: 2024-11-24

This template belongs to science courseware Hunan Education Edition Sixth Grade Science Volume 2 industry PPT template

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