"Looking for Arches" Shape and Structure PPT

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"Looking for Arches" Shape and Structure PPT

Part One: Dome and Sphere

There are many dome-shaped and spherical objects in life, have you noticed?

Observe the cut-open table tennis shell, take a look and pinch it. How is its thickness, softness and hardness?

Try it, how much pressure can three such table tennis shells buckle on the table bear?

If you squeeze and press a complete table tennis ball hard with your hands, will it easily become deflated?

What are the similarities between domes and arches? Try to explain the pressure-bearing characteristics of a dome shape.

The dome shape can be seen as a combination of arches. It has the characteristics of arch bearing large pressure and does not produce outward pushing force.

What are the similarities between a sphere and an arch? Try to explain the pressure-bearing characteristics of a sphere.

A sphere can be seen as an arch in all directions, which makes it stronger than any other shape.

Find the arch PPT, the second part of the content: the shape of the plastic bottle

Carefully observe the shapes of the top, middle and bottom of the plastic beverage bottle, and what other shapes are on the surface.

The mouth of the bottle is cylindrical

The upper part is dome-shaped or conical

The middle bottle is cylindrical.

The surface has circular arches, vertical arches or other convex and concave shapes.

Looking for Arches PPT, Part 3: Arches in Organisms

Do we have arches in our own bodies?

Arched ribs protect the internal organs in the chest.

The human skull is approximately spherical, which protects the brain well.

Do we have arches in our own bodies?

The bones of the human foot form an arch, the arch, which can better bear the weight of the human body.

In nature, are there any natural arches?

Observe the shells below. What significance do these shapes have to the organisms themselves?

Keywords: Free download of the Chinese PPT courseware for the first volume of the sixth grade in the textbook edition, download the arched PPT, download the shape and structure PPT, .PPT format;

For more information about the PPT courseware "Shape and Structure Finding Arches", please click the Shape and Structure ppt Finding Arches ppt tag.

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Update Time: 2024-11-15

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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