"Reduce Disposal and Reuse" Environment and Us PPT

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"Reduce Disposal and Reuse" Environment and Us PPT

Part One: Exploring New Knowledge

Reduce discards

You can reduce the amount of garbage thrown away every day.

To solve the garbage problem, we must first reduce the amount of garbage, then recycle the available materials, and then dispose the remaining garbage harmlessly.

Think about what kind of garbage can be reduced in life?

What kinds of waste can be reduced in daily life?

1. Double-sided printing can save paper.

2. Bring your own drinking glass when going out and buy less bottled drinks.

3. Reduce the use of paper bags, plastic bags and disposable chopsticks.

4. Don’t over-package.

5. Extend the service life of items.

6. Packaging boxes and wrapping paper account for a large proportion of garbage. Turn packaging boxes and wrapping paper into treasure and reuse them.

Packaging boxes account for a large proportion of garbage. Have you carefully observed packaging boxes?

Observational study of packaging boxes

Bring a product packaging box from home and observe and discuss the following questions.

1. What materials are the packaging boxes made of? How do we dispose of the packaging materials after the product is used up?

2. What is the difference between the volume of the packaging box and the volume of the product itself? What did we find?

3. What do we think of the excessive packaging behavior of some manufacturers?

4. What kind of packaging should we choose when shopping?

Reduce discarding and reusing PPT, Part 2: Expand and Expand

White pollution

White pollution is an image term for the phenomenon of waste plastic polluting the environment.

It refers to plastic products such as packaging bags, agricultural mulch films, disposable tableware, and plastic bottles made of polystyrene, polypropylene, polyvinyl chloride and other polymer compounds that are discarded as solid waste after use.

The main hazards of “white pollution”

The main harm of "white pollution" is "visual pollution" and "potential harm":

Visual pollution: Waste plastic packaging brings negative stimulation to people's vision, affects the overall beauty of cities and scenic spots, and damages the city appearance and scenery, thus causing "visual pollution".

Potential hazards:

First, too much land is occupied.

Second, pollute the air.

Third, pollute water bodies.

Fourth, fire hazard. .

Fifth, white garbage may become a nest for harmful organisms

Sixth, plastic packaging is difficult to degrade, causing long-term and deep-seated ecological problems.

Seventh, because of its large size, bacteria will breed in the landfill and pollute groundwater.

Reduce discarding and reusing PPT, Part 3: Summary of this lesson

1. Reducing the amount of garbage is a way to solve the garbage problem from the source.

2. Some packages seriously exceed their actual needs. (overpacked)

3. Reuse refers to using items that have been used multiple times, or using items that have been used in another way. It is also an important way to reduce waste.

Reduce discarding and reusing PPT, Part 4: Exercises in this lesson

1. Judgment questions,

1. Garbage disposal is to reduce garbage from the source. ( )

2. When choosing items, the more beautiful the packaging, the more the better. ( )

3. A packaging rope can be reused as a traction rope, a lifting rope, a bundle of objects, and a belt ( )

4. White pollution is an image term for the phenomenon of waste plastic polluting the environment. ( )

2. Fill in the blanks

1. People produce a lot of _________ in their lives.

2. Discarded garbage ________. At present, the main methods of garbage disposal are ________ and ________. Simple landfill and incineration can also cause environmental pollution.

3. The landfill can be __________________ but cannot be __________________

4. _______________________ is the solution to the garbage problem from the source.

3. Short answer questions

1. What do we think of the excessive packaging behavior of some manufacturers?

Excessive packaging not only wastes valuable resources such as paper and wood, but also increases the amount of garbage and increases the burden on consumers.

2. Write some suggestions for product manufacturers to reduce packaging waste.

1. Simply package the goods.

2. Recycle and reuse packaging materials.

3. Container reinstallation

Reduce discarding and reusing PPT, Part 5: Homework

Share, what kind of experience do you have after studying this course?

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"Reduce Disposal and Reuse" Environment and Us PPT download:

"Reduce Disposal and Reuse" Environment and Us PPT Download Part 1: Reduce Disposal What kind of garbage can be reduced in daily life? Reduce the use of disposable items. Use double-sided paper. Reduce packaging boxes and wrapping paper. Observe the mooncake packaging boxes and communicate...

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Update Time: 2024-11-23

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

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