"Materials for Building a House" PPT courseware

"Materials for Building a House" PPT courseware

I will fill in

The sky ( ) interrupts the opening of the Chu River, and the clear water flows eastward to this point.

( ) Contains Qianqiu snow in Xiling, and ships thousands of miles away from Dongwu.

Green ( ) is built into a glazed wall, green ( ) is built into a large pink wall.

Observe the houses around us and tell us, what are the main building materials used in building houses?

I would like

Think about it, in which parts of the house are these materials used? Why use it this way?

Group Cooperation 1: (Complete the P46 form)

Activity requirements:

1. Each group expresses its opinions in an orderly manner under the leadership of the group leader.

2. Each group summarizes its opinions and completes the P46 form

Group Cooperation 2: Classify Materials

Activity requirements:

(1) Each group is asked to determine its own classification standards and classify these building materials.

(Divided by size; divided by soft and hard; divided by use)

(2) Ask the leaders of each group to clarify the division of labor for their respective group members and keep records of the discussion results.

Natural Ingredients

Natural materials such as wood, sand, and stone are called natural materials.

There are materials in nature that can be used directly without processing or with little processing, which are called natural materials.

man-made materials

We classify artificial materials such as bricks, tiles, and cement into one category, called artificial materials.

Artificially made materials have different characteristics from raw materials, so they are called artificial materials. Materials like plastic, glass, steel, etc. are also man-made.

I will find

Find out, which items around us are made of natural materials and which are made of man-made materials?

New Materials

nanomaterials

Nanomaterials, also known as ultrafine particulate materials, are composed of nanoparticles. Nanoparticles are also called ultrafine particles, which generally refer to particles with a size between 1 and 100nm.

superconducting materials

A material that has the property of exhibiting resistance equal to zero and repelling magnetic lines of force under certain low temperature conditions.

New glass

1. Wire mesh anti-theft glass: Features---can automatically alarm.

Usage---It can be used in museums, bank jewelry stores, and buildings where important drawings and documents are stored.

2. Wired glass: Features---a. Very hard and not easily broken;

b. Safe and reliable, even if broken, the pieces will still stick together.

Purpose---can be widely used in high-rise buildings.

3. Color-changing glass: Features---a. Reflects sunlight; b. Changes color with the intensity of sunlight.

Purpose---Adjust indoor light and play the role of "automatic curtains".

4. Heat-absorbing glass: Features---making the room warm in winter and cool in summer.

Purpose---block strong sunlight in hot summer; block outdoor cold current in severe winter.

5. Sound-eating glass: Features: Can eliminate noise.

Function: Installed on buildings facing the streets in downtown areas, it can greatly reduce the noise intensity.

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"Materials for Building a House" PPT courseware 2:

"Materials for Building a House" PPT Courseware 2 Natural Materials Natural materials such as wood, sand, and stone are called natural materials. There are materials in nature that can be used directly without processing or with little processing, which are called natural materials. Man-Made Materials We...