"Inspection of the Natural Waters in My Hometown" Environment and Us PPT Courseware 2

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"Inspection of the Natural Waters in My Hometown" Environment and Us PPT Courseware 2

Is the water in the natural waters in your hometown polluted?

What causes pollution?

Let’s go check it out!

The teacher selects the inspection location. Think about what you should pay attention to during the inspection?

Make an inspection plan.

Investigate the quality of water in natural waters

fuolushan reservoir

1. Conduct inspections accompanied by teachers.

2. Be careful and comprehensive during the inspection.

3. When taking samples, be careful that the shore is slippery and do not go into deep water.

4. When taking samples, do not touch the water directly with your hands. It is best to wear gloves.

Field trips

During the inspection, first look at what kind of environment is around the water area and whether there is any wastewater discharge.

Then look at the color of the water, whether there are animals and plants in the water, and whether there are pollutants on the water surface.

Finally, take a bottle of water sample and bring it back to school for inspection and observation.

Further observations on the collected water samples

Let the water sample stand for a period of time to see if any impurities precipitate. What are the impurities?

Use a microscope to check for tiny organisms in the water that are invisible to the naked eye?

Precautions when using a microscope

1. Get water and prepare a slide specimen.

2. Place.

3. To the light.

4. Raise the objective lens and place the slide specimen.

5. Lower the objective lens and adjust the focus.

6. Move the slide specimen so that the image is in the middle of the field of view. (The specimen moving direction is opposite to the image moving direction)

Things to note when observing:

1. Observe carefully to prevent water samples from splashing.

2. Do not touch it directly with your hands.

3. When smelling, you should gently fan the mouth of the bottle with your hands to allow only a small amount of smell to drift into your nostrils. It is forbidden to put your nose to the mouth of the container to smell it.

4. When observing with a microscope, be careful and follow correct steps.

How to protect the water environment in our hometown?

My suggestion: start with yourself and don't put garbage into the reservoir.

Spread the word to those around you to protect our reservoirs.

Spontaneously organize to clean up the garbage beside the reservoir.

Recommendations to the government to strengthen efforts to manage reservoirs.

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For more information about the PPT courseware "Environment and our PPT inspection of the natural waters in our hometown", please click on the PPT tag "Environment and our PPT inspection of the natural waters in our hometown".

"Inspecting the Natural Waters of My Hometown" Environment and Us PPT download:

"Inspecting the Natural Waters in My Hometown" Environment and Us PPT Download Part One: Introduction of New Lessons Is the water in the natural waters in my hometown polluted? What causes pollution? Let’s go check it out! Discuss in groups and think about what to pay attention to during the inspection...

"Inspecting the Natural Waters of My Hometown" Environment and Us PPT:

"Inspecting the Natural Waters in My Hometown" Environment and Us PPT Part One: Making a Plan Is the water in the natural waters in my hometown polluted? What causes pollution? Let’s go check it out! Preparation before the inspection activity 1. Discuss the plan of the inspection activity..

"Inspection of the Natural Waters in My Hometown" Environment and Us PPT Courseware 4:

"Inspecting the Natural Waters in Hometown" Environment and Our PPT Courseware 4 Give it a try. Examine the quality of the water around you and discuss it in class! Precautions for using the microscope 1. Take water and prepare a slide specimen. 2. Place. 3. To the light. 4. Raise the objective lens and place the glass...

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Update Time: 2024-11-22

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

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